Catoptrics

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The branch of optics dealing with reflection. uncountable

    "'tis ordinary to see strange uncouth sights by catoptrics; who knows not that if in a dark room the light be admitted at one only little hole, and a paper or glass put upon it, the sun shining will represent on the opposite wall all such objects as are illuminated by his rays?"

  2. 2
    branch of optics dealing with formation of images by mirrors wordnet

Synonyms

All synonyms
anacampticsopticsphotometry

Example

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"'tis ordinary to see strange uncouth sights by catoptrics; who knows not that if in a dark room the light be admitted at one only little hole, and a paper or glass put upon it, the sun shining will represent on the opposite wall all such objects as are illuminated by his rays?"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.