Pronunciation: (ok'yu-lus), [key]
—pl. -liPronunciation: (-lī"). [key]
1. an eye.
2. Archit.a circular opening, esp. one at the apex of a dome.
3. Archaeol.a design representing an eye, as on funerary pottery found in megalithic tombs of Europe.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.