n., pl., o·cel·li (ō-sĕl'ī').
- A small simple eye, found in many invertebrates, usually consisting of a few sensory cells and a single lens.
- A marking that resembles an eye, as on the tail feathers of a male peacock; an eyespot.
[Latin, diminutive of oculus, eye.]
ocellar o·cel'lar (ō-sĕl'ər) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.