DIOPTRE


Meaning of DIOPTRE in English

transcription, транскрипция: [ daɪˈɔptə ]

n. (US diopter) Optics a unit of refractive power of a lens, equal to the reciprocal of its focal length in metres. [F dioptre f. L dioptra f. Gk dioptra: see DIOPTRIC]

English main colloquial, spoken dictionary.      Английский основной разговорный словарь.