C2 noun #138,421 most common

The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one

critical angle in 30 Seconds

  • (noun) The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
  • (noun) (aerodynamics) The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases
  • (noun) The smallest angle of a ramp or stairs considered uncomfortable or unsafe

Meanings

  1. 1
    noun The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one
  2. 2
    noun (aerodynamics) The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases
  3. 3
    noun The smallest angle of a ramp or stairs considered uncomfortable or unsafe
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