pol ‧ yp /ˈpɒləp, ˈpɒlɪp $ ˈpɑː-/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: French ; Origin: polype , from Latin polypus 'octopus' , from Greek , from poly- ( ⇨ ↑ poly- ) + pous 'foot' ]
1 . a small lump that grows inside your body because of an illness, but is not likely to harm you
2 . a very simple sea animal that has a body like a tube:
a coral polyp