Optic Definition

ŏptĭk
adjective
Of the eye or sense of sight.
Webster's New World
Of or relating to the science of optics or optical equipment.
American Heritage
Synonyms:
noun
An eye.
Webster's New World
A lens or an optical instrument.
Webster's New World

A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.

Wiktionary
Synonyms:
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Other Word Forms of Optic

Noun

Singular:
optic
Plural:
optics

Origin of Optic

  • Middle English optik from Old French optique from Medieval Latin opticus from Greek optikos from optos visible okw- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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

    From Wiktionary

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