Толковый словарь английского языка - optical
Optical
optical
adjective Date: 1570 of or relating to the science of optics, 2. of or relating to vision ; visual , visible 1 , of, relating to, or being objects that emit light in the visible range of frequencies , using the properties of light to aid vision , 3. of, relating to, or utilizing light especially instead of other forms of energy , involving the use of light-sensitive devices to acquire information for a computer , of or relating to ~ art, ~ly adverb
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1.
adj. 1 of sight; visual. 2 a of or concerning sight or light in relation to each other. b belonging to optics. 3 (esp. of a lens) constructed to assist sight or on the principles of optics. Phrases and idioms optical activity Chem. the property of rotating the plane of polarization of plane-polarized light. optical art a style of painting that gives the illusion of movement by the precise use of pattern and colour. optical brightener any fluorescent substance used to produce a whitening effect on laundry. optical character recognition the identification of printed characters using photoelectric devices. optical disc see DISC. optical fibre thin glass fibre through which light can be transmitted. optical glass a very pure kind of glass used for lenses etc. optical illusion 1 a thing having an appearance so resembling something else as to deceive the eye. 2 an instance of mental misapprehension caused by this. optical microscope a microscope using the direct perception of light (cf. electron microscope). Derivatives optically adv. ...Толковый словарь английского языка Oxford English Reference
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