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refract

[ri-frakt] /rɪˈfrækt/
verb (used with object)
1.
to subject to refraction.
2.
to determine the refractive condition of (an eye).
Origin
1605-1615
1605-15; < Latin refrāctus, past participle of refringere to break, force back, equivalent to re- re- + frac- (variant stem of frangere to break) + -tus past participle suffix
Related forms
refractable, adjective
refractedly, adverb
refractedness, noun
nonrefracting, adjective
unrefracted, adjective
unrefracting, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for unrefracting

refract

/rɪˈfrækt/
verb (transitive)
1.
to cause to undergo refraction
2.
to measure the refractive capabilities of (the eye, a lens, etc)
Derived Forms
refractable, adjective
Word Origin
C17: from Latin refractus broken up, from refringere, from re- + frangere to break
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for unrefracting

refract

v.

"to bend" (light, sound, heat, etc.), 1610s, back-formation from refraction, and in part from Latin refractus, past participle of refringere. Related: Refracted; refracting.

Online Etymology Dictionary, © 2010 Douglas Harper
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unrefracting in Medicine

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

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

  2. To determine the refraction of an eye or a lens.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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