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verb (used with object)
to subject to refraction.
to determine the refractive condition of (an eye).
verb (transitive)
to cause to undergo refraction
to measure the refractive capabilities of (the eye, a lens, etc)

refract re·fract (rĭ-frākt’)
v. re·fract·ed, re·fract·ing, re·fracts

To deflect something, especially light, from a straight path by refraction.

To determine the refraction of an eye or a lens.


Read Also:

  • Refractile

    adjective 1. refractive (def 2).

  • Refracting-telescope

    noun 1. See under telescope (def 1). noun 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens set into one end of a tube and an adjustable eyepiece or combination of lenses set into the other end […]

  • Refraction

    noun 1. Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different. 2. Ophthalmology. the ability of the eye to refract light that enters it so as to form an image on the retina. the […]

  • Refractionist

    refractionist re·frac·tion·ist (rĭ-frāk’shə-nĭst) n. A person trained to measure the refraction of the eye and to determine the proper corrective lenses.

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