Word.ws English Dictionary

catopters

catopters is the plural of catopter.

Meaning of catopter

Noun

catopter (plural catopters)

  1. (obsolete) A reflecting optical glass or instrument; a mirror.
    • My Cat whose black fur was so glossy and fine Her use of Catharon one well could divine. Almost indeed a Catopter she showed.1885, C.M. Van Wagenen, A Catagraph
  2. A unit of measure of the converging power of a curved mirror, equal to the reciprocal of the focal length in meters; a diopter applied to a curved reflective surface as opposed to a lens.
    • This focus divided into 40", gives the catopters.1916, James John Lewis, State Board Examinations: Questions and Answers, page 41
  3. An Ancient Greek anal dilator or speculum.
    • Hippocrates (B.C. 432) described an instrument, the catopter, which was undoubtedly used as an anal speculum,1897, W.L Reid, “President's Address: The History, Forms, and Theories of the Vaginal Speculum”, in Transactions of the Royal Medico-Chirurgical Society of Glasgow, volume 1, page 119

Questions about catopters

What is catopters the plural of?
Catopters is the plural of catopter.

Words near catopters in the dictionary

  1. Catoosa
  2. Catoosa County
  3. catophile
  4. catophiles
  5. catopter
  6. catopters
  7. catoptiomancy
  8. catoptric
  9. catoptrical
  10. catoptrically
  11. catoptrics

Source and license

Adapted from Wiktionary: catopters (page history and authors); catopter (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “catopters.” Word.ws, https://word.ws/catopters. Based on Wiktionary, CC BY-SA 4.0.