O·cel·lus n.; pl. Ocelli Zool. (a) A little eye; a minute simple eye found in many invertebrates. (b) An eyelike spot of color, as those on the tail of the peacock.
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ocellus
n 1: an eye having a single lens [syn: simple eye, stemma]
2: an eyelike marking (as on the wings of some butterflies);
usually a spot of color inside a ring of another color
[syn: eyespot]
[also: ocelli (pl)]