Collins COBUILD Advanced Learner's English Dictionary - optic
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Optic
optic
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1.
I. adjective Etymology: Middle English, from Medieval Latin ~us, from Greek optikos, from opsesthai to be going to see; akin to Greek opsis appearance, ops eye — more at eye Date: 14th century of or relating to vision or the eye II. noun Date: 1600 1. eye 2. a. any of the elements (as lenses, mirrors, or light guides) of an ~al instrument or system — usually used in plural b. an ~al instrument ...Merriam-Webster Collegiate Dictionary
2.
adj. & n. --adj. of or relating to the eye or vision (optic nerve). --n. 1 a lens etc. in an optical instrument. 2 archaic or joc. the eye. 3 (Optic) Brit. propr. a device fastened to the neck of a bottle for measuring out spirits etc. Phrases and idioms optic angle the angle formed by notional lines from the extremities of an object to the eye, or by lines from the eyes to a given point. optic axis 1 a line passing through the centre of curvature of a lens or spherical mirror and parallel to the axis of symmetry. 2 the direction in a doubly refracting crystal for which no double refraction occurs. optic lobe the dorsal lobe in the brain from which the optic nerve arises. Etymology: F optique or med.L opticus f. Gk optikos f. optos seen ...Толковый словарь английского языка Oxford English Reference
Англо-русский Русско-английский научно-технический словарь
Англо-русский Русско-английский биологический словарь
5.
1. обыкн pl. глаз 2. глазной, зрительный optic nerve —- зрительный нерв optic angle —- угол зрения ...Новый большой англо-русский словарь
Англо-русский словарь
7.
~1 adj only before noun concerning the eyes (the optic nerve) ~2 n 1 optics the scientific study of light 2 BrE a small plastic object on a bottle of alcohol that measures the amount to be poured into a glass ...Longman Dictionary of Contemporary English
8.
- early 15c., from M.Fr. obtique, from M.L. opticus "of sight or seeing," from Gk. optikos "of or having to do with sight," from optos "seen, visible," from op-, root of opsesthai "be going to see," related to ops "eye," from PIE *oqw- "eye/see." Optics is from 1579; optician is first attested 1687, after Fr. opticien. ...Английский Этимологический словарь
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