Definition of catoptrics in English:

Share this entry


Pronunciation: /kəˈtäptriks/

plural noun

[treated as singular] Physics
The branch of optics that deals with reflection.
Example sentences
  • When catoptrics are combined with conventional lens systems, known as dioptrics, the resulting sensors are known as catadioptrics.
  • This was a particular account of microscopes and telescopes, from Mr. Huygens, with an introduction showing the discoveries made by catoptrics and dioptrics.
  • These apparently frivolous aesthetics derive from the serious work in catoptrics of an earlier generation of Minim monks shuttling back and forth between the Place Royale in Paris and the Trinità ai Monti in Rome.


Mid 16th century (originally catoptric): from Greek katoptrikos 'reflecting', from katoptron 'mirror'.

For editors and proofreaders

Syllabification: ca·top·trics

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.