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oculus

[ok-yuh-luh s] /ˈɒk yə ləs/
noun, plural oculi
[ok-yuh-lahy] /ˈɒk yəˌlaɪ/ (Show IPA)
1.
an eye.
2.
Architecture. a circular opening, especially one at the apex of a dome.
3.
Archaeology. a design representing an eye, as on funerary pottery found in megalithic tombs of Europe.
Origin
< Neo-Latin, Latin: eye
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for oculus
  • Go when it's raining to watch the drops shower through the oculus, the hole in the dome's top.
  • The oculus, the round opening at the top of the dome, allows the sun's rays to illuminate different sections of the interior.
  • It enters through the oculus on top, which provides the only light for the interior.
  • The gable end features a boxed cornice with returns and a blind oculus.
  • Flower rosettes appear in the fireplace, the oculus and the stenciling.
  • The dome itself is made of copper with oculus or round vents symmetrically incorporated into the design.
  • The mock-up was of the top four courses of the pavilion containing the oculus.
Word Origin and History for oculus

"an eye," plural oculi, 1857, from Latin oculus "an eye" (see eye (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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oculus in Medicine

oculus oc·u·lus (ŏk'yə-ləs)
n. pl. oc·u·li (-lī')
Abbr. O
Eye.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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