• Optic

    Alternative forms

    Origin

    From Medieval Latin opticus, from Ancient Greek ὀπτικός (optikos, "of seeing").

    Full definition of optic

    Adjective

    optic

    1. Of, or relating to the eye or to vision.
      • MiltonThe moon, whose orb
        Through optic glass the Tuscan artist views.
    2. Of, or relating to optics or optical instruments.

    Noun

    optic

    (plural optics)
    1. (now humorous) An eye.
      • Alexander Pope (1688-1744)The difference is as great between
        The optics seeing, as the object seen.
      • 1819, Lord Byron, Don Juan, I:how they,
        Who saw those figures on the margin kiss all,
        Could turn their optics to the text and pray,
        Is more than I know...
      • 1907, Robert Chambers, The Younger Set Chapter 8, “I never understood it,” she observed, lightly scornful. “What occult meaning has a sun-dial for a spooney ? I’m sure I don't want to read riddles into a strange gentleman’s optics.”
    2. A lens or other part of an optical instrument that interacts with light.
      • 2013, Fenella Saunders, Tiny Lenses See the Big Picture, The single-imaging optic of the mammalian eye offers some distinct visual advantages. Such lenses can take in photons from a wide range of angles, increasing light sensitivity. They also have high spatial resolution, resolving incoming images in minute detail.
    3. A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.

    Related terms

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