OCULUS

Oculus

An oculus, plural oculi, from Latin oculus: eye, denotes a circular opening in the centre of a dome or in a wall. Originating in Antiquity, it is a feature of Byzantine and Neoclassical architecture. It is also known as an œil de boeuf from the French, or simply a "bull's-eye".

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oculus

Noun

  1. A window or other opening that has an oval or circular shape (as of an eye).
    One can glimpse the sky through the oculus of the Pantheon in Rome.


The above text is a snippet from Wiktionary: oculus
and as such is available under the Creative Commons Attribution/Share-Alike License.

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