dioptre

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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.

Similar
diopter
Scrabble 10
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Meanings

noundioptre (plural dioptres)

plural dioptres

  1. alternativeAlternative spelling of diopter.

Synonyms & antonyms

nouna unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists

Similar
diopter
Broader
unit of measurementunit
Also see
diopter

Synonym sets from Open English WordNet, CC BY 4.0.

Rhymes & wordplay

Anagrams

peridotdiopterprotideperiodtpteroidreptoidproetidproteid
Cite this entry
APA

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

MLA

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

Chicago

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

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