catoptrics

[ kuh-top-triks ]
/ kəˈtɒp trɪks /

noun (used with a singular verb)

the branch of optics dealing with the formation of images by mirrors.

Origin of catoptrics

1560–70; < Greekkatoptrikós, equivalent to kátoptr(on) mirror (kat- cat- + op- see + -tron suffix of instruments) +-ikos -ic; see -ics

OTHER WORDS FROM catoptrics

ca·top·tric, ca·top·tri·cal, adjectiveca·top·tri·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for catoptric

British Dictionary definitions for catoptric

catoptrics
/ (kəˈtɒptrɪks) /

noun

(functioning as singular) the branch of optics concerned with reflection, esp the formation of images by mirrors

Derived forms of catoptrics

catoptric or catoptrical, adjective

Word Origin for catoptrics

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

Scientific definitions for catoptric

catoptric
[ kə-tŏptrĭk ]

Relating to the reflection of light, especially by a mirror. Catoptric lenses are used in Fresnel lenses and many telescopes. Compare catadioptric dioptric.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.