Ocellus

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ocellus \O*cel"lus\, n.; pl. {Ocelli}. [L., dim. of oculus an
     eye.] (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.


            [1913 Webster]

From WordNet (r) 2.0 [wn]:

  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)]