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
Related formsca·top·tric, ca·top·tri·cal, adjectiveca·top·tri·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for catoptrics

catoptrics, dioptrics

Examples from the Web for catoptrics

Historical Examples of catoptrics

British Dictionary definitions for catoptrics



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