noun, plural peacocks (especially collectively) peacock.
1. the male of the peafowl distinguished by its long, erectile, greenish, iridescent tail coverts that are brilliantly marked with ocellated spots and that can be spread in a fan.
2. any peafowl.
3. a vain, self-conscious person.
4. (initial capital letter) Astronomy. the constellation Pavo.
verb (used without object)
5. to make a vainglorious display; strut like a peacock.
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