English Explanatory Dictionary

optic

English dictionary entry

Meanings

adj
  1. Of, or relating to the eye or to vision.
  2. Of, or relating to optics or optical instruments.
noun
  1. An eye.
  2. A lens or other part of an optical instrument that interacts with light.
  3. A measuring device with a small window, attached to an upside-down bottle, used to dispense alcoholic drinks in a bar.

Pronunciation

/ˈɒp.tɪk/ LL-Q1860 (eng)-Vealhurl-optic.wav /ˈɑp.tɪk/

Word forms

optic optick optique optics

Etymology

Borrowed from Middle French optique or Medieval Latin opticus, from Ancient Greek ὀπτῐκός (optĭkós, “of or for sight”), from ὀπτός (optós, “visible”) + -ῐκός (-ĭkós, “-ic”, adjectival suffix).

Derived words

acoustooptic acousto-optic effect biooptic electrooptic entoptic fiberoptic fibre optic fluoroptic holoptic hyperoptic Leber's hereditary optic neuropathy magnetooptic monoptic optical optic axis optic chiasm optic chiasma optic cup optic disc optic disk optic foramen opticist optic nerve optic neuritis optico- optic yellow panoptic paroptic perioptic piezooptic plenoptic postoptic preoptic stereoptic suboptic supraoptic optic stand
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