資料來源 : Webster's Revised Unabridged Dictionary (1913)

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

資料來源 : WordNet®

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)]

ocelli
     See {ocellus}