dioptra

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A form of diopter — A unit of measure of the power of a lens or mirror, equal to the reciprocal of its focal length in meters. Myopia is diagnosed and measured in diopters.

Scrabble 10
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Meanings

noun
  1. alternativeAlternative form of diopter.

Rhymes & wordplay

Anagrams

partidoparotidTrapido
Cite this entry
APA

dioptra. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/dioptra

MLA

“dioptra.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/dioptra. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “dioptra,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/dioptra.

Source: dioptra on Wiktionary, CC BY-SA 4.0.