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dioptrics

[dahy-op-triks] /daɪˈɒp trɪks/
noun, (used with a singular verb)
1.
the branch of geometrical optics dealing with the formation of images by lenses.
Origin
1635-1645
1635-45; see dioptric, -ics
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for dioptrics

dioptrics

/daɪˈɒptrɪks/
noun
1.
(functioning as sing) the branch of geometrical optics concerned with the formation of images by lenses
Word Origin
C20: from dioptre + -ics
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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dioptrics in Medicine

dioptrics di·op·trics (dī-ŏp'trĭks)
n.
The branch of optics that deals with the refraction of light.


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