| Optical 1. (a.) Of or pertaining to vision or sight. 2. (a.) of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Eye. 3. (a.) Relating to the science of optics; as, optical works. Thesaurus Entries achromatic lens, astigmatic lens, burning glass, camera, coated lens, concave lens, concavo-convex lens, condenser, convex lens, eye, eyeball, eyeglass, eyepiece, glass, hand lens, lamp, lens, magnifier, magnifying glass, meniscus, object glass, objective, objective prism, oculus, ogle, ophthalmic, optic, optical, orb, peeper, prism, reader, reading glass, seeable, seeing, telephoto lens, toric lens, varifocal lens, viewable, visible, visional, visual, winker, zoom lens |