Library / English Dictionary

    CRITICAL ANGLE

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    The smallest angle of incidence for which light is totally reflectedplay

    Classified under:

    Nouns denoting two and three dimensional shapes

    Hypernyms ("critical angle" is a kind of...):

    angle of incidence; incidence angle (the angle that a line makes with a line perpendicular to the surface at the point of incidence)

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