English dictionary

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English *noun*: optical device
1.	optical device (artifact) a device for producing or controlling light
		Broader (hypernym)	device
		Narrower (hyponym)	autofocus, biprism, camera lucida, coelostat, collimator, diffraction grating, diffuser, diffusor, finder, grating, Kerr cell, laser, lens, lens system, lense, Nicol prism, optical maser, optical prism, planetarium, polarimeter, polariscope, prism, projector, Rochon prism, stereoscope, view finder, viewer, viewfinder, Wollaston prism

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