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catoptrics

[kuh-top-triks] /kəˈtɒp trɪks/
noun, (used with a singular verb)
1.
the branch of optics dealing with the formation of images by mirrors.
Origin of catoptrics
1560-1570
1560-70; < Greekkatoptrikós, equivalent to kátoptr(on) mirror (kat- cat- + op- see + -tron suffix of instruments) +-ikos -ic; see -ics
Related forms
catoptric, catoptrical, adjective
catoptrically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for catoptrics

catoptrics

/kəˈtɒptrɪks/
noun
1.
(functioning as sing) the branch of optics concerned with reflection, esp the formation of images by mirrors
Derived Forms
catoptric, catoptrical, adjective
Word Origin
C18: from Greek katoptrikos, from katoptron mirror
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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