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 (kə-tŏp′trĭk) also ca·top·tri·cal (-trĭ-kəl)
Of or relating to mirrors and reflected images.

[Greek katoptrikos, from katoptron, mirror; see okw- in Indo-European roots.]

ca·top′trics n.


(General Physics) (functioning as singular) the branch of optics concerned with reflection, esp the formation of images by mirrors
[C18: from Greek katoptrikos, from katoptron mirror]
caˈtoptric, caˈtoptrical adj


(kəˈtɒp trɪks)

n. (used with a sing. v.)
the branch of optics dealing with the formation of images by mirrors.
[1560–70; < Greek katoptrikós <kátoptr(on) mirror (kat- cat- + op- see (compare diopter, optic)]
ca•top′tric, ca•top′tri•cal, adj.
ca•top′tri•cal•ly, adv.


the study of light reflection. — catoptric, catoptrical, adj. — catoptrically, adv.
See also: Light
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.catoptrics - branch of optics dealing with formation of images by mirrors
optics - the branch of physics that studies the physical properties of light
References in periodicals archive ?
Later work on catoptrics shows that there is a precise geometry to the angles and apparent distances at which objects appear 'behind' the mirror, a phenomenon that Aristotle's account ignores.
Catoptrics is a branch of science concerned with what?
The Pharos, the lighthouse in ancient Alexandria on top of which an enormous mirror was positioned with which one was able to see enemy ships from far away (and to set them on fire), is perhaps the most familiar incarnation of legendary telescopic catoptrics, but translated in Latin as late as 1575, it was preceded by various medieval versions of the same device.