refraction

Noun
  1. The change in direction of a propagating wave (light or sound) when passing from one medium to another (synset 111523705)
    is a type of: physical phenomenon - a natural phenomenon involving the physical properties of matter and energy
    subtypes: birefringence, double refraction - splitting a ray into two parallel rays polarized perpendicularly
  2. The amount by which a propagating wave is bent (synset 107425483)
    is a type of: bend, bending - movement that causes the formation of a curve
    same as: deflection, deflexion

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