B1 noun خنثی #6 رایج‌ترین 2 دقیقه مطالعه

stem

/stɛm/

The 'stem' is either the main structural part of a plant or the base form of a word before affixes are added.

واژه در 30 ثانیه

  • Main plant stalk or word base.
  • Supports leaves, transports water.
  • Root form for adding prefixes/suffixes.

Overview

The word 'stem' has two primary meanings in English. The most common meaning refers to the structural axis of a plant, which supports the leaves, flowers, and fruits, and often transports water and nutrients. This part of the plant can be above ground (like a tree trunk) or below ground (like a tuber). The second meaning is linguistic, referring to the base or root form of a word to which affixes are attached. For example, in 'unhappiness', 'happy' is the stem.

Usage Patterns

As a noun referring to plants, 'stem' is used in botanical contexts, gardening, and general descriptions of plant anatomy. It is often used with adjectives describing its appearance (e.g., 'thick stem', 'fragile stem') or function (e.g., 'water-carrying stem'). In linguistics, 'stem' is used in discussions of morphology and word formation. It's important to distinguish between a stem and a root; a stem is a form that can often stand alone as a word, while a root might not.

Common Contexts

You'll encounter 'stem' in contexts related to nature, biology, agriculture, and botany. For instance, 'The rose has a thorny stem.' 'We need to prune the lower stems of the plant.' In linguistics, it appears in grammar lessons or discussions about etymology. 'The verb 'run' is the stem for 'running' and 'ran'.' 'The stem of the word 'beautiful' is 'beauty'.'

Similar Words Comparison:

  • 'Trunk': Often used for the main woody stem of a tree.
  • 'Stalk': Can be used interchangeably with stem for plants, but sometimes implies a longer, more slender stem, especially for flowers.
  • 'Root': The part of the plant that typically grows underground and anchors it, absorbing water and nutrients. It's distinct from the stem.
  • 'Base': In linguistics, 'base' can be synonymous with 'stem', referring to the part of a word to which affixes are added. However, 'base' can also refer to a more fundamental element from which words are derived.

مثال‌ها

1

The thick stem of the cactus stores water.

botany

La gruesa caña del cactus almacena agua.

2

From the stem 'act', we can form 'acting' and 'actor'.

linguistics

A partir del lexema 'act', podemos formar 'acting' y 'actor'.

3

He tried to stem the flow of blood from the wound.

medical

Intentó detener el flujo de sangre de la herida.

4

The wine glass has a delicate crystal stem.

objects

La copa de vino tiene un delicado pie de cristal.

ترکیب‌های رایج

plant stem tallo de planta
thick stem tallo grueso
word stem lexema / base de palabra
stem from originarse de / provenir de

عبارات رایج

stem from

provenir de, originarse en

stem the tide

frenar la marea, detener el avance

stem cell

célula madre

اغلب اشتباه گرفته می‌شود با

stem vs root

In plants, the root typically grows underground and anchors the plant, while the stem is usually above ground and supports leaves/flowers. In linguistics, a root is the fundamental part of a word, which may not stand alone, whereas a stem is often a form that can stand alone.

stem vs stalk

Often used interchangeably with 'stem' for plants, 'stalk' can sometimes imply a longer, more slender support, especially for flowers. 'Stem' is a more general term for the main axis.

الگوهای دستوری

Noun: The [adjective] stem of the plant... Noun: This is the stem of the word '[word]'. Verb: His problems stemmed from his childhood. Verb: We must stem the tide of misinformation.

How to Use It

نکات کاربردی

The word 'stem' is versatile, applying to both botanical and linguistic contexts. When used as a verb, 'stem from' indicates origin, while 'to stem the tide' means to stop or restrain a flow. Pay attention to the context to understand which meaning is intended.


اشتباهات رایج

Learners might confuse the botanical 'stem' with the 'root'. In linguistics, mistaking a complex derived word for its simple stem can occur. Also, the verb usage needs careful distinction between originating from something and stopping something.

Tips

💡

Visualize the Plant Structure

Think of the stem as the plant's backbone, connecting the roots to the leaves and flowers.

💡

Identify the Word Base

When learning word formation, look for the core part of the word that makes sense on its own – that's often the stem.

⚠️

Distinguish Stem from Root

While related, a stem is a specific part of a plant's structure, whereas a root anchors and absorbs. In linguistics, stems are often complete words, roots may not be.

🌍

Symbolism in Flowers

The stem of a flower often symbolizes strength and support, holding beauty aloft. Different flowers have distinct stem characteristics.

ریشه کلمه

The word 'stem' comes from the Old English 'stemma', meaning 'stem of a plant'. It shares roots with similar Germanic words related to standing or supporting.

بافت فرهنگی

In many cultures, the stem symbolizes growth, life, and connection between the earth (roots) and the sky (flowers/fruit). It represents resilience and the structural integrity of life.

راهنمای حفظ

Imagine a plant growing upwards from its roots, with the 'stem' being the main upward pathway. For words, think of the 'stem' as the solid base from which branches (prefixes/suffixes) grow.

سوالات متداول

4 سوال

The stem is typically the above-ground part that supports leaves and flowers, while the root is usually underground and anchors the plant. However, some stems, like potatoes, grow underground.

Yes, 'stem' can be used as a verb, meaning to stop or hold back the flow of something, like 'to stem the tide of', or to originate or come from, like 'His success stemmed from hard work'.

In the word 'unbreakable', 'break' is the stem. Suffixes like '-able' and prefixes like 'un-' are added to this base form.

Yes, 'stem' can also refer to the part of a wine glass that holds the bowl above the foot, or to the part of eyeglasses that goes over the ear.

خودت رو بسنج

fill blank

The long, thin ___ of the flower held the delicate petals high.

درسته! نه دقیقاً. پاسخ صحیح: stem

The sentence describes the part of the flower that supports the petals, which is the stem.

multiple choice

In linguistics, the ___ is the part of a word to which affixes are attached.

درسته! نه دقیقاً. پاسخ صحیح: stem

The stem is the base form of a word in morphology, onto which prefixes and suffixes can be added.

sentence building

a) the b) from c) success d) stemmed e) hard work

درسته! نه دقیقاً. پاسخ صحیح: c, d, b, e, a

The correct sentence is 'Success stemmed from hard work.' This uses 'stemmed' as a verb meaning 'originated'.

امتیاز: /3

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