Peacock /(pē"kŏk`)/

Pea·cock

Peacock

n.
  1. The male of any pheasant of the genus Pavo, of which at least two species are known, native of Southern Asia and the East Indies. (Zool.)
  2. In common usage, the species in general or collectively; a peafowl.

Phrases & Compounds
Peacock butterfly
a handsome European butterfly (Hamadryas Io) having ocelli like those of peacock.
Peacock fish
the European blue-striped wrasse (Labrus variegatus); -- so called on account of its brilliant colors. Called also cook wrasse and cook.
Peacock pheasant
any one of several species of handsome Asiatic pheasants of the genus Polyplectron. They resemble the peacock in color.