'Refract' definitions:

Definition of 'refract'

From: WordNet
verb
Subject to refraction; "refract a light beam"
verb
Determine the refracting power of (a lens)

Definition of 'Refract'

From: GCIDE
  • Refract \Re*fract"\ (r?*fr$kt"), v. t. [imp. & p. p. Refracted; p. pr. & vb. n. Refracting.] [L. refractus, p. p. of refringere; pref. re- re- + frangere to break: cf. F. r['e]fracter. SEe FRacture, and cf. Refrain, n.]
  • 1. To bend sharply and abruptly back; to break off. [1913 Webster]
  • 2. To break the natural course of, as rays of light orr heat, when passing from one transparent medium to another of different density; to cause to deviate from a direct course by an action distinct from reflection; as, a dense medium refrcts the rays of light as they pass into it from a rare medium. [1913 Webster]