adj. Optics 1 serving as a medium for sight; assisting sight by refraction (dioptric glass; dioptric lens). 2 of refraction; refractive.
[ Gk dioptrikos f. dioptra a kind of theodolite ]
adj. Optics 1 serving as a medium for sight; assisting sight by refraction (dioptric glass; dioptric lens). 2 of refraction; refractive.
[ Gk dioptrikos f. dioptra a kind of theodolite ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012