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Noun: ocellus (ocelli)  ow'se-lus or u'se-lus
  1. An eye having a single lens
    - simple eye, stemma
  2. An eyelike marking (as on the wings of some butterflies); usually a spot of colour inside a ring of another colour
    - eyespot

Derived forms: ocelli

Type of: eye, marking, oculus, optic

Encyclopedia: Ocellus