catoptrics Meaning, Definition & Usage

  1. noun branch of optics dealing with formation of images by mirrors

WordNet

Ca*top"trics noun
Etymology
Cf. F. catoptrique. See Catropric.
Definitions
  1. (Physics) That part of optics which explants the properties and phenomena of reflected light, and particularly that which is reflected from mirrors or polished bodies; -- formerly caled anacamptics.

Webster 1913