puf ‧ fin /ˈpʌfən, ˈpʌfɪn/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Origin: Perhaps from puff , from the idea of the young ones being "puffed up" in shape ]
a North Atlantic seabird with a black and white body and a large brightly coloured beak
puf ‧ fin /ˈpʌfən, ˈpʌfɪn/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Origin: Perhaps from puff , from the idea of the young ones being "puffed up" in shape ]
a North Atlantic seabird with a black and white body and a large brightly coloured beak
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012