pea ‧ cock /ˈpiːkɒk $ -kɑːk/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Origin: pea 'peacock' (900-1000) (from Old English , from Latin pavo ) + cock ]
a large bird, the male of which has long blue and green tail feathers that it can lift up and spread out ⇨ peahen