refraction
1. [ noun ] (physics) the change in direction of a propagating wave (light or sound) when passing from one medium to another
Related terms: physical_phenomenon double_refraction refract
2. [ noun ] the amount by which a propagating wave is bent
Synonyms: deflexion deflection
Related terms: bending
Similar spelling:   refract
  refractive
  refractile
  refractivity
  refrigeration
  refracture
  refractory
  repression
  refractometer