optic UK /ˈɒp.tɪk/US /ˈɑp.tɪk/noun 3adjective 2forms 1 noun3 •A lens or other part of an optical instrument that interacts with light. •A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.They were neatly lined up on three shelves between the optics of martini, vodka, whisky and gin. — 2014 •(humorous, no longer used) An eye.The difference is as great between / The optics seeing, as the object seen. — 1734 adjective2 •Of, or relating to the eye or to vision.The moon, whose orb / Through optic glass the Tuscan artist views. — 1667 •Of, or relating to optics or optical instruments. formsoptics
