This page in your language

فارسی

العربية

Deutsch

Español

Français

日本語

한국어

Português

中文

हिन्दी

A2 noun #4,500 most common 13 min read

口腔

kǒuqiāng Top 4,500

Practice it Examples Notes & Tips 口腔 in 30 Seconds

Explanation 口腔 in your Level:

At the A1 level, you are just starting to learn about the parts of the body. While 'mouth' is usually taught as '嘴' (zuǐ) or '嘴巴' (zuǐba), it is good to recognize '口腔' (kǒuqiāng) as a more formal word. You might see it in a hospital or on a bottle of mouthwash. Think of '口' (kǒu) as the opening you use to eat and '腔' (qiāng) as the empty space inside. At this stage, you don't need to use '口腔' in your daily speech, but you should know it refers to the mouth area in a healthy or medical way. If you see it on a sign, just remember it means 'mouth'. It's like the difference between saying 'belly' and 'abdomen'. You use 'mouth' (嘴) most of the time, but the doctor uses 'oral cavity' (口腔). Learning this word helps you understand that Chinese has different words for different situations, even for simple things like body parts. Just focus on the character '口', which looks like an open mouth, to help you remember the first part of the word. The second part, '腔', is more complex, but you can recognize it by the 'flesh' radical on the left side.

At the A2 level, you are beginning to handle more specific situations, like visiting a doctor or buying health products. '口腔' (kǒuqiāng) is an important word for these scenarios. You should know that '口腔' is used for 'oral' health. If you have a mouth sore, which is common when you are stressed or eat too much spicy food, the term is '口腔溃疡' (kǒuqiāng kuìyáng). You will also see '口腔科' (kǒuqiāng kē) on hospital directories—this is the Dentistry Department. At this level, you can start using '口腔' when you want to sound more precise about your health. For example, '我要买口腔喷雾' (I want to buy an oral spray). You should also notice how '口腔' is used in advertisements for toothpaste. It helps you distinguish between the physical mouth (嘴) and the medical concept of the oral cavity. Practice saying '口腔卫生' (kǒuqiāng wèishēng), which means oral hygiene. This is a very common phrase that will make you sound more like a serious student of the language. Remember, '口腔' is a noun and usually stays the same in sentences.

At the B1 level, you are moving toward intermediate fluency and should be comfortable using '口腔' (kǒuqiāng) in appropriate contexts. You should understand that this word is part of a formal register. In discussions about health, biology, or professional hygiene, '口腔' is the standard term. You might use it to describe symptoms to a doctor more accurately, such as '口腔干燥' (dry mouth) or '口腔发炎' (oral inflammation). You should also be able to read short articles about health that use this word. For example, an article might discuss the importance of '口腔保健' (oral health care). You will notice that '口腔' often acts as a modifier for other nouns. Understanding this pattern helps you build your vocabulary more quickly. You should also start to recognize the character '腔' (qiāng) in other words like '胸腔' (thoracic cavity) or '腹腔' (abdominal cavity), which will expand your medical vocabulary. At this stage, you should know not to use '口腔' in casual jokes or romantic settings, as it would sound too clinical. Focus on using it in professional or health-related conversations to demonstrate your growing command of Chinese registers.

At the B2 level, you should have a nuanced understanding of '口腔' (kǒuqiāng) and its role in technical Chinese. You can use it in academic writing, formal presentations, or detailed medical discussions. You should be familiar with more complex terms like '口腔粘膜' (oral mucosa), '口腔医学' (stomatology/oral medicine), and '口腔畸形' (oral deformity). You should also understand how '口腔' is used in the field of linguistics to describe the production of speech sounds. For instance, you might explain how certain consonants are formed by the placement of the tongue within the '口腔'. At this level, you can participate in debates about public health policy, such as whether the government should provide free '口腔检查' (oral check-ups) for children. You should also be able to understand the fine distinctions between '口腔' and other similar terms like '口部' (mouth area) or '口咽' (oropharynx). Your ability to use '口腔' correctly in a formal essay or a professional report will show that you have mastered the formal register of Mandarin. You should also be aware of the cultural shift in China toward better oral health and how the word '口腔' is central to this trend in modern media and marketing.

At the C1 level, your use of '口腔' (kǒuqiāng) should be indistinguishable from that of an educated native speaker. You should be able to read and analyze complex medical journals or biological research papers that use '口腔' as a fundamental term. You should understand the historical development of the word and how it fits into the broader system of Chinese anatomical nomenclature. For example, you might discuss the '口腔微生态' (oral micro-ecology) or the '口腔颌面外科' (oral and maxillofacial surgery) with precision. You should also be able to use the word in sophisticated metaphors if necessary, although it remains primarily a technical term. In professional settings, such as a medical conference or a high-level business meeting in the healthcare sector, you should use '口腔' effortlessly. You should also be able to explain the etymology of the characters, noting how the '月' (flesh) radical in '腔' signifies its biological nature. Your understanding should extend to how '口腔' is used in legal or forensic contexts, such as '口腔拭子' (oral swab) for DNA testing. At this level, you are not just learning the word; you are mastering the entire professional field associated with it.

At the C2 level, you possess a masterly command of '口腔' (kǒuqiāng) and its usage across all possible domains, from the most specialized medical subfields to high-level linguistic theory. You can effortlessly navigate the most dense academic texts, such as those discussing '口腔癌的分子机制' (molecular mechanisms of oral cancer) or '口腔在人类演化中的作用' (the role of the oral cavity in human evolution). You understand the subtle sociolinguistic implications of choosing '口腔' over other terms in various dialects and social strata. You can engage in high-level professional discourse, perhaps even presenting original research or policy recommendations in Chinese that center on '口腔健康' (oral health). You are also aware of the latest technological advancements, such as '口腔数字化诊疗' (digital oral diagnosis and treatment). Your mastery allows you to use the word with perfect precision, ensuring that your register always matches the context perfectly. You can also appreciate the word's place in the broader landscape of the Chinese language, recognizing its stability as a technical term while also seeing how it adapts to new scientific discoveries. For you, '口腔' is not just a vocabulary item; it is a precise tool for communication in the highest levels of science and society.

Practice it Examples Notes & Tips

口腔 in 30 Seconds

口腔 refers to the oral cavity or internal mouth, used primarily in medical and formal health contexts in Chinese.
It is a noun composed of '口' (mouth) and '腔' (cavity), making it an anatomical term.
Commonly found in hospital names (口腔科) and health products like toothpaste or mouthwash advertisements.
Learners should use it when discussing health issues but avoid it in casual or romantic conversations to stay natural.

The Chinese term 口腔 (kǒuqiāng) is a precise anatomical noun that translates directly to "oral cavity" or, more simply, the internal structure of the mouth. While the common word for mouth in daily conversation is 嘴 (zuǐ) or 嘴巴 (zuǐba), 口腔 is the term of choice in medical, scientific, and formal hygiene contexts. It encompasses everything from the inner cheeks and palate to the gums and the floor of the mouth. Understanding this word is essential for anyone navigating healthcare in a Chinese-speaking environment or discussing health and biology. In a standard Chinese sentence, you will encounter 口腔 when a dentist explains a procedure, when a commercial advertises toothpaste, or when a doctor describes symptoms of an illness. It serves as a professional anchor for discussions regarding health, whereas 嘴 is more about the physical act of eating, speaking, or the external appearance of the lips.

Anatomical Precision: Refers specifically to the hollow space inside the mouth, including the biological structures contained within.
Formal Register: Used primarily in clinics, hospitals, and formal health literature rather than casual dinner table talk.
Compound Foundation: Acts as a prefix for many medical terms like 口腔科 (Dentistry) and 口腔溃疡 (Mouth ulcer).

保持良好的口腔卫生对全身健康至关重要。 (Maintaining good oral hygiene is crucial for overall health.)

When you visit a hospital in China, you won't look for the "Mouth Department"; you will look for the 口腔科 (kǒuqiāng kē). This distinction is vital. If you tell a doctor "我的嘴疼" (My mouth hurts), it is grammatically correct but vague. If you say "我的口腔内部有溃疡" (I have an ulcer inside my oral cavity), you are using the language of a precise and educated speaker. The word is composed of two characters: 口 (kǒu), meaning mouth or opening, and 腔 (qiāng), meaning cavity, hollow, or chamber. Together, they create a clear mental image of the physical space. In recent years, with the rising middle class in China, there has been a significant increase in the use of this word in marketing. Brands like Crest or Colgate focus heavily on 口腔健康 (oral health) rather than just "clean teeth." This reflects a shift toward holistic wellness.

医生正在检查病人的口腔。 (The doctor is examining the patient's oral cavity.)

Furthermore, 口腔 is used in phonetics and linguistics to describe how sounds are produced. Linguists talk about the 口腔形状 (shape of the oral cavity) when explaining the difference between various vowel sounds. This makes it a multi-faceted word that bridges the gap between biological science and the humanities. Even in daily life, if you are buying a specific type of mouthwash, the label will almost certainly use 口腔. It carries a sense of cleanliness and clinical safety that the more colloquial 嘴 lacks. For a learner, mastering this word signals a transition from basic survival Chinese to a more nuanced, professional level of fluency.

我们需要定期进行口腔检查。 (We need to have regular oral check-ups.)

Usage in Media: Commonly heard in health segments on news programs and educational documentaries.
Linguistic Context: Used to describe the resonance chamber in speech therapy and vocal training.

这种药物可以缓解口腔疼痛。 (This medication can relieve oral pain.)

请张开你的口腔。 (Please open your mouth/oral cavity.)

Using 口腔 (kǒuqiāng) correctly requires an understanding of its formal nature. It usually functions as a noun, often acting as a modifier for other nouns to create compound medical terms. For example, if you want to talk about oral health, you combine it with 卫生 (wèishēng - hygiene) to get 口腔卫生. Unlike the word 嘴, which can be used as a verb in some slang or as a measure word, 口腔 is strictly a noun. You will frequently see it following verbs like 检查 (jiǎnchá - to examine), 保持 (bǎochí - to maintain), or 治疗 (zhìliáo - to treat). In a sentence, it often occupies the object position, especially in medical instructions given by healthcare providers. For instance, a dentist might say, "请保持口腔清洁" (Please keep your oral cavity clean). This sounds much more professional than saying "clean your mouth," which could imply something social or behavioral rather than medical.

Medical Instructions: Commonly used by doctors to specify the area of treatment or examination.
Product Labeling: Found on toothpastes, mouthwashes, and dental floss packaging to describe the scope of the product's effect.

他的口腔里有一个小伤口。 (There is a small wound inside his oral cavity.)

Another common structure involves the use of 口腔 in describing diseases. The most frequent is 口腔溃疡 (oral ulcer/canker sore). If you go to a pharmacy and say "我嘴疼" (My mouth hurts), the pharmacist will likely ask, "是口腔溃疡吗?" (Is it an oral ulcer?). Using the specific term helps narrow down the diagnosis. Furthermore, in academic writing, 口腔 is used to describe biological functions. For example, "口腔是消化系统的第一道门户" (The oral cavity is the first gateway of the digestive system). This illustrates how the word is used to discuss the mouth's role as a biological organ. It is also common in passive structures, such as "口腔被细菌感染了" (The oral cavity was infected by bacteria).

长期吸烟会对口腔粘膜造成损害。 (Long-term smoking can cause damage to the oral mucosa.)

In terms of grammar, 口腔 can be modified by adjectives like 健康的 (healthy), 干燥的 (dry), or 敏感的 (sensitive). For example, "他患有严重的口腔干燥症" (He suffers from severe xerostomia/dry mouth syndrome). This level of specificity is what distinguishes an intermediate learner from a beginner. You can also see it in possessive forms: "你的口腔" (your oral cavity). In professional settings, it is often paired with the suffix -科 (kē - department), as in 口腔内科 (oral medicine) or 口腔外科 (oral surgery). These terms are essential for navigating any Chinese hospital (医院). Even in beauty and aesthetics, 口腔美容 (oral aesthetics/cosmetic dentistry) is a growing field, showing the word's versatility in modern society.

这种喷雾可以清新口腔口气。 (This spray can freshen oral breath.)

Disease Names: Used as a prefix for specific illnesses like 口腔癌 (oral cancer).
Professional Titles: Used in titles like 口腔医师 (oral surgeon/dentist).

医生建议他每天用盐水冲洗口腔。 (The doctor suggested he rinse his oral cavity with salt water every day.)

我们要重视口腔保健。 (We must attach importance to oral health care.)

You are most likely to encounter 口腔 (kǒuqiāng) in environments where health and science are the focus. The most common location is the dentist's office. In China, dental clinics are often labeled as 口腔诊所 (kǒuqiāng zhěnsuǒ). From the moment you walk in, the signage, the forms you fill out, and the doctor's consultation will revolve around this word. For example, the receptionist might ask if you are there for a 口腔检查 (oral check-up). Television and internet advertisements are another major source. High-end toothpaste brands frequently use slogans like "全方位口腔护理" (all-around oral care) to sound more scientific and trustworthy than brands that just say they make your teeth white. This word creates an aura of clinical authority that appeals to health-conscious consumers.

Hospitals and Clinics: Standard terminology in the medical system for anything related to the mouth.
Pharmacy Settings: When looking for treatments for sores or bad breath, pharmacists use this term.

这家口腔医院的技术非常先进。 (The technology at this oral hospital is very advanced.)

In educational settings, such as biology classes or medical school, 口腔 is the only acceptable term for the mouth as a system. Students learn about 口腔解剖学 (oral anatomy) and the enzymes found in 口腔. Even in more general contexts, like a parent teaching a child about hygiene, they might use the word to instill a sense of importance. A mother might say, "你要保护好你的口腔" (You need to protect your oral cavity well) to make the advice sound more serious than just "brush your teeth." Furthermore, in the workplace, if you work in the pharmaceutical or healthcare industry, 口腔 is part of the daily professional vocabulary. It is also found in government health regulations and public health posters seen in subways or community centers, often advising people on how to prevent the spread of diseases through the 口腔.

广告宣传这种牙膏能有效杀灭口腔细菌。 (The advertisement claims this toothpaste can effectively kill oral bacteria.)

Interestingly, you might also hear this word in the context of forensic science or criminal investigations on TV shows like "CSI: China" (or its local equivalents). Investigators might mention finding evidence in the victim's 口腔. In more modern, high-tech beauty salons, you might hear about 口腔SPA, a trend where the inner mouth is massaged and cleaned for relaxation and health. This shows how a once strictly medical term is migrating into the lifestyle and wellness sectors. Whether it's a serious medical diagnosis or a luxury wellness treatment, 口腔 is the word that defines the space where health begins. For a language learner, hearing this word should immediately trigger a "medical/health" context in your mind, helping you better understand the situation even if you don't know every other word in the sentence.

学校每年都会组织学生进行口腔体检。 (The school organizes an annual oral physical examination for students.)

News Reports: Used in reports about public health crises or new dental technologies.
Beauty Industry: Used in marketing for teeth whitening and breath freshening services.

请注意口腔内的异味。 (Please pay attention to any unusual smells in the oral cavity.)

医生正在为他进行口腔手术。 (The doctor is performing oral surgery on him.)

The most frequent mistake learners make with 口腔 (kǒuqiāng) is using it in overly casual situations. Because it is a formal medical term, using it with friends can sound strange or even humorous. For instance, if you are at a restaurant and want to say "My mouth is burning from the chili," saying "我的口腔很辣" (wǒ de kǒuqiāng hěn là) sounds like a scientific report on the effects of capsaicin. Instead, you should use "我的嘴很辣" (wǒ de zuǐ hěn là). Another error is confusing 口腔 with 嘴唇 (zuǐchún - lips). While 口腔 refers to the internal cavity, 嘴唇 refers specifically to the external lips. If you have a cut on your lip, don't say you have a "口腔伤口" (oral wound) unless it's actually inside your mouth. This distinction is important for accurate communication with medical professionals.

Register Mismatch: Using 口腔 in casual conversation instead of 嘴 or 嘴巴.
Internal vs. External: Confusing the internal oral cavity with the external lips or face.

错误：我想亲你的口腔。 (Incorrect: I want to kiss your oral cavity.)

Another mistake involves the measure words. While 嘴 uses 张 (zhāng) as a measure word (一张嘴), 口腔 is rarely used with a measure word because it's treated as an anatomical region. You wouldn't say "一个口腔" in most contexts. Also, be careful with the character 腔 (qiāng). It can sometimes be confused with 强 (qiáng - strong) or 枪 (qiāng - gun) by beginners due to similar sounds or components. Ensure you are using the correct character with the "flesh" radical (月) on the left, which indicates it's a body part. Furthermore, learners sometimes over-rely on 口腔 for all things related to the mouth. For example, "speaking" is related to the mouth, but you cannot say "口腔语言" to mean spoken language; the correct term is "口语" (kǒuyǔ).

正确：他的口腔健康状况良好。 (Correct: His oral health status is good.)

Lastly, some students try to translate English idioms literally. For example, "to have a big mouth" (meaning someone who gossips) cannot be translated using 口腔. In Chinese, that would be "大嘴巴" (dà zuǐba). Using "大口腔" would simply mean someone has a physically large oral cavity, which would likely lead to confusion. Similarly, "shut your mouth" is "闭嘴" (bì zuǐ), never "闭口腔." Understanding that 口腔 is a technical term helps you avoid these awkward literal translations. Always ask yourself: "Am I in a doctor's office or a coffee shop?" This simple check will guide you to the right word choice. In summary, keep 口腔 for health, biology, and formal hygiene, and use 嘴 for everything else.

错误：闭上你的口腔！ (Incorrect: Shut your oral cavity!)

Idiomatic Confusion: Trying to use 口腔 in figurative expressions where 嘴 is required.
Character Confusion: Mixing up 腔 with 枪 or 强 due to pinyin similarities.

正确：这种药可以治疗口腔炎症。 (Correct: This medicine can treat oral inflammation.)

不要把口腔和嘴唇混淆。 (Do not confuse the oral cavity with the lips.)

To truly master the vocabulary surrounding the mouth, you must understand how 口腔 (kǒuqiāng) compares to its synonyms. The most common alternative is 嘴 (zuǐ) or 嘴巴 (zuǐba). These are the general terms used for eating, talking, and physical appearance. If you are describing someone's beautiful smile, you would say "她的嘴很漂亮" (Her mouth is beautiful). Using 口腔 here would be clinical and awkward. Another related term is 口 (kǒu), which is often used in compound words like 入口 (entrance) or as a measure word for people in a family (一家三口). While 口 is the root of 口腔, it has a much broader range of meanings, including "opening" or "hole."

口腔 (kǒuqiāng): Formal, clinical, anatomical. Used for health, medicine, and biology.
嘴/嘴巴 (zuǐ/zuǐba): Informal, daily life. Used for eating, speaking, and appearance.
牙口 (yákǒu): Colloquial. Refers specifically to the health and strength of one's teeth, often used for elderly people or animals.

相比于“嘴巴”，“口腔”听起来更专业。 (Compared to "zuǐba", "kǒuqiāng" sounds more professional.)

Then there is 口部 (kǒubù), which is often used in art, makeup, or facial recognition technology to refer to the "mouth area." If a makeup artist is talking about lipstick application, they might use 口部. In linguistics, you might hear 口腔音 (kǒuqiāngyīn), which refers to oral sounds as opposed to nasal sounds (鼻音). Another specific term is 牙膛 (yátáng), a more old-fashioned or regional way to refer to the roof of the mouth (palate), though the formal term is 腭 (è). Understanding these nuances allows you to choose the word that fits the register of your conversation. If you are writing a formal essay on public health, 口腔 is your best friend. If you are writing a poem about a kiss, avoid 口腔 at all costs.

医生检查了他的口腔和喉咙。 (The doctor checked his oral cavity and throat.)

In some dialects, people might use even more specific terms. For example, in Northern China, people might use 嘴里 (zuǐ lǐ - inside the mouth) instead of 口腔 in semi-formal situations. However, 口腔 remains the standard for Mandarin across all regions when it comes to formal documentation. There is also the term 口舌 (kǒushé), which literally means "mouth and tongue" but is often used figuratively to mean "dispute" or "words" (e.g., 费口舌 - to waste one's breath). Again, 口腔 never carries these figurative meanings. It is always literal, always physical, and always scientific. By keeping these distinctions in mind, you will avoid the "uncanny valley" of sounding like a medical textbook in a casual setting or a child in a professional one.

我们要养成良好的口腔习惯。 (We should develop good oral habits.)

口舌 (kǒushé): Literal: mouth and tongue. Figurative: disputes or talk.
口部 (kǒubù): The facial region of the mouth; used in art and aesthetics.

保持口腔湿润非常重要。 (Keeping the oral cavity moist is very important.)

这位医生的口腔修复技术很高。 (This doctor's oral restoration technique is very high.)

How Formal Is It?

Fun Fact

The character '腔' is also used in music to refer to a 'tune' or 'accent' (e.g., 腔调), because the oral cavity is the resonance chamber for singing.

Pronunciation Guide

UK kʰəʊ.tɕʰjaŋ

US koʊ.tʃiɑŋ

The stress is balanced between both syllables, though the first syllable 'kǒu' (3rd tone) is often more prominent before the high 'qiāng' (1st tone).

Rhymes With

江 (jiāng) 枪 (qiāng) 窗 (chuāng) 双 (shuāng) 帮 (bāng) 光 (guāng) 张 (zhāng) 糖 (táng)

Common Errors

Pronouncing 'qiāng' as 'kwang' (incorrectly using a 'w' sound).
Confusing the 3rd tone of 'kǒu' with the 2nd tone.
Not aspirating the 'q' sound in 'qiāng'.
Failing to sustain the 1st tone of 'qiāng' long enough.
Misreading '腔' as '枪' (though they sound the same, the meaning is different).

Difficulty Rating

Reading 3/5

The character '腔' is complex for beginners.

Writing 4/5

Writing '腔' requires attention to the '月' radical and the '空' component.

Speaking 3/5

The 'q' in 'qiāng' is a difficult sound for many English speakers.

Listening 2/5

Easy to recognize once you know the 'kǒu' sound.

What to Learn Next

Prerequisites

口牙医生卫生

Learn Next

溃疡粘膜正畸检查预防

Advanced

颌面唾液腺龋齿牙周炎种植牙

Grammar to Know

Noun as Modifier

口腔 (Noun) + 卫生 (Noun) = Oral Hygiene

Measure Words with Body Parts

一张嘴 (Correct) vs 一个口腔 (Rare/Technical)

Locative Particles

在口腔里 (Inside the oral cavity)

Directional Verbs

进入口腔 (Enter the oral cavity)

Adjective Modification

健康的口腔 (A healthy oral cavity)

Examples by Level

这是我的口腔。

This is my oral cavity.

Simple identification sentence using 是.

口腔里有牙齿。

There are teeth in the oral cavity.

Using 里 (inside) to show location.

我们要保护口腔。

We need to protect the oral cavity.

Using 保护 (protect) as a verb.

口腔很大。

The oral cavity is big.

Simple adjective description.

口腔不舒服。

The oral cavity is uncomfortable.

Using 不舒服 (uncomfortable) to describe health.

看口腔医生。

See an oral doctor (dentist).

Using 口腔 as a modifier for doctor.

口腔卫生很重要。

Oral hygiene is very important.

Using 很重要 to emphasize importance.

口腔是红色的。

The oral cavity is red.

Color description.

医生检查了我的口腔。

The doctor examined my oral cavity.

Completed action with 了.

我有口腔溃疡。

I have an oral ulcer.

Standard medical condition phrase.

请保持口腔清洁。

Please keep the oral cavity clean.

Formal request using 请.

口腔科在二楼。

The dentistry department is on the second floor.

Locational sentence.

这种牙膏对口腔好。

This toothpaste is good for the oral cavity.

Using 对...好 (good for...).

他觉得口腔很干。

He feels his oral cavity is very dry.

Describing a sensation.

口腔手术需要时间。

Oral surgery takes time.

Noun compound.

别让口腔发炎。

Don't let the oral cavity get inflamed.

Using 别 (don't) for advice.

良好的口腔卫生可以预防疾病。

Good oral hygiene can prevent diseases.

Using 可以 (can) to show possibility.

这种药物专门治疗口腔炎症。

This medicine is specifically for treating oral inflammation.

Using 专门 (specifically) to modify the verb.

口腔是消化系统的起点。

The oral cavity is the starting point of the digestive system.

Definitional sentence.

他正在接受口腔正畸治疗。

He is undergoing orthodontic treatment.

Progressive aspect with 正在.

口腔癌的早期发现非常重要。

Early detection of oral cancer is very important.

Complex subject phrase.

吸烟会损害口腔健康。

Smoking will damage oral health.

Using 会 (will) for future consequences.

这种喷雾能有效清新口腔。

This spray can effectively freshen the oral cavity.

Using 有效 (effectively) as an adverb.

医生建议每年做两次口腔检查。

The doctor suggests having two oral check-ups a year.

Using 建议 (suggest) followed by a clause.

口腔粘膜对外界刺激非常敏感。

The oral mucosa is very sensitive to external stimuli.

Using 对...敏感 (sensitive to...).

该医院引进了先进的口腔扫描技术。

The hospital has introduced advanced oral scanning technology.

Formal verb 引进 (introduce).

口腔内的细菌种类非常繁多。

The types of bacteria in the oral cavity are very numerous.

Using 繁多 (numerous) for formal description.

他发表了一篇关于口腔医学的论文。

He published a paper on oral medicine.

Using 关于 (regarding) to define the topic.

口腔修复不仅是为了美观，更是为了功能。

Oral restoration is not only for aesthetics but also for function.

Not only... but also... structure (不仅...更是...).

长期磨牙会导致口腔关节受损。

Grinding teeth long-term can lead to damage to oral joints.

Using 导致 (lead to) for cause and effect.

这种洗牙液能深入清洁口腔死角。

This mouthwash can deeply clean the dead corners of the oral cavity.

Using 深入 (deeply) as an adverb.

口腔畸形可能会影响语言表达。

Oral deformities may affect speech expression.

Using 可能会 (may/might).

口腔微生态系统的平衡对预防龋齿至关重要。

The balance of the oral micro-ecosystem is crucial for preventing cavities.

Using 至关重要 (crucial) for high formality.

本文探讨了口腔颌面部创伤的修复策略。

This article discusses restoration strategies for oral and maxillofacial trauma.

Academic verb 探讨 (discuss/explore).

口腔中的唾液含有多种消化酶。

The saliva in the oral cavity contains various digestive enzymes.

Using 含有 (contain) in a scientific sense.

随着年龄增长，口腔组织的再生能力会下降。

As age increases, the regenerative capacity of oral tissues will decrease.

Using 随着 (along with/as) to show correlation.

口腔内窥镜在现代牙科诊断中得到了广泛应用。

Oral endoscopes have been widely used in modern dental diagnosis.

Passive structure with 得到了广泛应用.

某些全身性疾病的首发症状往往出现在口腔。

The first symptoms of certain systemic diseases often appear in the oral cavity.

Using 往往 (often/tend to) for patterns.

口腔生物力学研究对于义齿设计具有指导意义。

Oral biomechanics research has guiding significance for denture design.

Using 具有...意义 (has... significance).

该项研究揭示了口腔细菌与心脏病之间的潜在联系。

The study revealed a potential link between oral bacteria and heart disease.

Using 揭示 (reveal) for research findings.

口腔作为人体与外界交流的重要门户，其免疫防御机制极为复杂。

As an important gateway for communication between the human body and the outside world, the oral cavity's immune defense mechanism is extremely complex.

Using 作为 (as) to establish a role.

在演化语言学中，口腔结构的改变被认为是人类语言产生的关键因素。

In evolutionary linguistics, changes in the structure of the oral cavity are considered a key factor in the emergence of human language.

Using 被认为是 (is considered to be).

通过对口腔微生物组的深度测序，科学家发现了数千种未知菌株。

Through deep sequencing of the oral microbiome, scientists discovered thousands of unknown bacterial strains.

Using 通过... (through...) to show method.

口腔颌面外科的精细手术极大地改善了患者的生活质量。

The delicate surgeries of oral and maxillofacial surgery have greatly improved patients' quality of life.

Using 极大地 (greatly) to modify the verb.

口腔粘膜给药系统作为一种新兴的递药方式，正受到广泛关注。

The oral mucosal drug delivery system, as an emerging method of drug delivery, is receiving widespread attention.

Using 正受到 (is receiving) for current trends.

口腔生理学的研究成果为人工智能语音合成提供了理论支撑。

The research results of oral physiology have provided theoretical support for AI speech synthesis.

Using 为...提供 (provide... for...).

尽管口腔卫生意识在提升，但偏远地区的口腔医疗资源依然匮乏。

Despite the rising awareness of oral hygiene, oral medical resources in remote areas remain scarce.

Using 尽管...但... (despite... but...).

口腔修复材料的生物相容性是评价其性能的核心指标。

The biocompatibility of oral restoration materials is the core indicator for evaluating their performance.

Using 是...的核心指标 (is the core indicator of...).

Common Collocations

口腔卫生

口腔溃疡

口腔科

口腔检查

口腔健康

口腔手术

口腔粘膜

口腔护理

口腔细菌

口腔癌

Common Phrases

张开口腔

— Open the oral cavity. Used by doctors during exams.

请张开口腔，让我检查一下。

口腔异味

— Oral odor or bad breath in a clinical sense.

口腔异味可能是肠胃问题的信号。

口腔清洁

— The act of cleaning the mouth area.

口腔清洁是每天的必修课。

口腔保健

— Oral healthcare and maintenance.

我们要从小重视口腔保健。

口腔内科

— Oral internal medicine.

口腔内科医生负责治疗牙龈病。

口腔外科

— Oral surgery department.

他去口腔外科拔牙了。

口腔医院

— A specialized dental hospital.

这家口腔医院很有名。

口腔炎症

— Inflammation within the mouth.

这种药对口腔炎症很有效。

口腔干燥

— The condition of having a dry mouth.

感冒药有时会引起口腔干燥。

口腔正畸

— Orthodontics (correcting teeth alignment).

口腔正畸需要佩戴牙套。

Often Confused With

口腔 vs 嘴巴

Too casual for medical contexts.

口腔 vs 口语

Means 'spoken language', not 'oral cavity'.

口腔 vs 口部

Refers to the facial area, not the internal cavity.

Idioms & Expressions

"口若悬河"

— To speak like a waterfall; very eloquent. (Note: Uses '口', not '口腔', but related to the mouth).

他讲起话来口若悬河。

Literary

"口蜜腹剑"

— Honey in the mouth, a sword in the belly; two-faced.

那个人口蜜腹剑，不可信任。

Literary

"信口开河"

— To speak at random or talk nonsense.

你不要信口开河，要讲证据。

Informal

"口是心非"

— To say one thing but mean another.

他总是口是心非，让人捉摸不透。

Neutral

"口诛笔伐"

— To condemn both in speech and in writing.

大家对他这种行为口诛笔伐。

Formal

"众口难调"

— It is hard to please everyone's taste.

做菜容易，但众口难调。

Neutral

"口口相传"

— To be passed on by word of mouth.

这个故事在民间口口相传。

Neutral

"脱口而出"

— To say something without thinking; to blurt out.

他不加思索，脱口而出。

Neutral

"哑口无言"

— To be left speechless.

他的话让我哑口无言。

Neutral

"口干舌燥"

— Mouth and tongue are parched; very thirsty from talking too much.

我讲了两个小时，口干舌燥。

Neutral

Easily Confused

口腔 vs 嘴巴

Both mean mouth.

嘴巴 is casual and refers to the whole mouth; 口腔 is formal and refers to the internal cavity.

张开嘴巴 (Casual) vs. 检查口腔 (Formal).

口腔 vs 口语

Both start with '口'.

口语 is spoken language; 口腔 is a body part.

我的口语很好 (My spoken Chinese is good).

口腔 vs 口岸

Both start with '口'.

口岸 means a port or border crossing.

我们在口岸过关 (We crossed at the port).

口腔 vs 腔调

Both use '腔'.

腔调 refers to an accent or tone of voice.

他的腔调很奇怪 (His accent is strange).

口腔 vs 胸腔

Both end with '腔'.

胸腔 is the chest cavity.

医生检查了他的胸腔 (The doctor checked his chest cavity).

Sentence Patterns

这是[Body Part]。

这是口腔。

我有[Disease]。

我有口腔溃疡。

[Subject]对[Object]很重要。

口腔卫生对健康很重要。

通过[Method]来[Result]。

通过刷牙来保持口腔清洁。

[Subject]被广泛应用于[Field]。

口腔扫描仪被广泛应用于牙科。

尽管...但是...

尽管口腔技术在进步，但是费用依然很高。

医生建议[Verb]...

医生建议检查口腔。

[Noun]在[Location]。

口腔科在三楼。

Word Family

Nouns

口腔科

口腔医学

口腔医师

口腔粘膜

Verbs

漱口 (shùkǒu - to rinse mouth)

开口 (kāikǒu - to open mouth)

Adjectives

口头的 (kǒutóu de - oral/verbal)

牙齿

舌头

牙龈

唾液

喉咙

How to Use It

frequency

High in medical/health domains; Low in casual street talk.

Common Mistakes

Using '口腔' to mean 'speaking'. → Using '口语' or '说话'.
'口腔' is only the physical space, not the act of speaking.
Saying '我的口腔疼' when you have a cold sore on your lip. → Saying '我的嘴唇疼'.
'口腔' is internal; lips are '嘴唇'.
Using '口腔' in a romantic poem. → Using '红唇' or '嘴'.
'口腔' is too clinical and unromantic.
Confusing '口腔' with '口音'. → Using '口音' for accent.
'口音' refers to how you sound; '口腔' is where the sound comes from.
Writing '腔' with the '立' radical instead of '月'. → Using the '月' (flesh) radical.
The radical is crucial for the meaning of body parts.

Tips

In the Clinic

Always use '口腔' when speaking to a doctor to sound more professional and accurate.

Visual Aid

Think of the character '口' as the entrance and '腔' as the room inside.

Compound Words

Learn '口腔' as part of phrases like '口腔卫生'—it's rarely used alone.

Status Symbol

Understand that '口腔健康' is a major trend in modern China, so expect to see the word often in ads.

Tone Accuracy

Pay close attention to the 3rd tone of 'kǒu'. If you miss it, the word might be harder to understand.

Related Cavities

Learn '鼻腔' (nasal) and '胸腔' (chest) at the same time to master the '腔' character.

Radical Recognition

Recognizing the 'flesh' radical will help you identify many other body-related characters.

Ad Context

When you hear '口腔' in a commercial, it's almost certainly for toothpaste or mouthwash.

Casual vs. Formal

If you are eating, use '嘴'. If you are bleeding, use '口腔'.

Ancient Roots

Knowing that '口' is a pictograph of a mouth makes it one of the easiest characters to remember.

Memorize It

Mnemonic

Imagine a big '口' (square mouth) opening up to reveal a giant '腔' (hollow chamber) where your teeth live. The '月' in '腔' reminds you it is made of flesh.

Visual Association

Visualize a dentist's light shining into a dark, hollow cave. The cave is the '腔' and the entrance is the '口'.

Word Web

口腔牙舌医药洗洁

Challenge

Try to say '口腔溃疡' five times fast without tripping over the 'q' and 'k' sounds.

Word Origin

The term '口腔' is a combination of two ancient Chinese characters. '口' (kǒu) is a pictograph representing an open mouth, dating back to oracle bone script. '腔' (qiāng) is a phono-semantic compound where the left part '月' (actually representing meat/flesh) indicates the body, and '空' (kōng - empty) provides the phonetic hint and the sense of a 'hollow' space.

Original meaning: The original meaning of '口' was the mouth of a human or animal. '腔' originally referred to the hollow space inside a body or a vessel.

Sino-Tibetan

Cultural Context

Be careful not to sound too clinical in social settings; it might make you seem detached or overly formal.

English speakers often just say 'mouth' for everything. Learning to use 'oral cavity' in Chinese helps bridge the gap to professional speech.

口腔医学 (Stomatology) journals Crest (佳洁士) commercials Colgate (高露洁) commercials

Practice in Real Life

Real-World Contexts

At the Dentist

我想做口腔检查。
我这里疼。
我有口腔溃疡。
需要动手术吗？

Buying Toothpaste

哪种对口腔健康最好？
有防过敏的吗？
我想买口腔喷雾。
这个能去异味吗？

Biology Class

口腔是消化道的第一部分。
唾液在口腔中产生。
口腔粘膜的功能。
牙齿的结构。

Parenting

快去洗口腔！
别把脏东西放进口腔里。
我们要去口腔医生那里。
少吃糖，对口腔不好。

News/Media

全国口腔健康日。
专家建议保护口腔。
新型口腔扫描仪。
口腔癌的预防。

Conversation Starters

"你多久去一次口腔诊所做检查？"

"你觉得哪种品牌的口腔护理产品最好用？"

"你听说过‘口腔健康，全身健康’这句话吗？"

"如果有了口腔溃疡，你通常怎么处理？"

"你认为学校应该加强口腔卫生教育吗？"

Journal Prompts

描述一次你去看口腔医生的经历。你当时觉得紧张吗？

写一写你每天是如何保持口腔卫生的。你觉得这些习惯重要吗？

如果你是一名口腔医生，你会给病人什么样的健康建议？

讨论一下现代科技是如何改变口腔医疗行业的。

你认为口腔健康在社交生活中扮演了什么样的角色？

Frequently Asked Questions

10 questions

It's better to use '嘴' or '嘴巴'. Using '口腔' makes it sound like a medical report. Say '我的嘴很辣' instead.

'口' is a very general word meaning opening or mouth. '口腔' is specifically the internal cavity. '口' is often used in compound words like '人口' (population).

Yes, '口腔科' (kǒuqiāng kē) is the Dentistry Department in a hospital. A dentist is called a '口腔医生' or '牙医'.

The formal term is '口腔溃疡' (kǒuqiāng kuìyáng). This is very common in China.

Yes, it describes the space where sounds are articulated. For example, '口腔形状' means the shape of the mouth during speech.

Yes, you can use it for animals in a biological or veterinary context, such as '河马的口腔非常大'.

Usually, no measure word is used. If you must use one, '个' is acceptable in technical contexts, but it's rare.

The '月' (yuè) radical is a simplified version of '肉' (ròu - meat/flesh), used for many body parts like 脸 (face) and 肚 (belly).

'口腔卫生' is the broader concept of oral hygiene, which includes brushing, flossing, and regular check-ups.

No, that sounds very weird. If you want to compliment someone's mouth/smile, say '你的嘴真漂亮' or '你的笑容很美'.