Dioptry
noun ·Rare ·Advanced level
Definitions
- 1 Alternative form of diopter. alt-of, alternative, obsolete
"The Dioptral System of numbering prisms alone possesses the great desideratum of establishing a direct and simple relation between the prism-dioptry and the lens-dioptry, as demonstrated by the authors' law, that "a lens decentered one centimeter will produce as many prism-dioptry as the lens has dioptry of refraction.""
Synonyms
All synonymsExample
More examples"The Dioptral System of numbering prisms alone possesses the great desideratum of establishing a direct and simple relation between the prism-dioptry and the lens-dioptry, as demonstrated by the authors' law, that "a lens decentered one centimeter will produce as many prism-dioptry as the lens has dioptry of refraction.""
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.