dioptres
plural of dioptre
• diopters, dipteros, dropsite, peridots, portside, proetids, proteids, protides, pteroids, reptoids, riposted, topsider, tripodes
Source: Wiktionary
Di*op"tre, n. Etym: [F. See 2d Dioptric.] (Optics)
Definition: A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 December 2024
(noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit
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