(suborder Pinnipedia), any of various families of aquatic, fin-footed mammals in the order Carnivora, often considered a separate order. There are three existing families of pinnipeds: Odobenidae (see walrus) and Phocidae and Otariidae (see seal).
PINNIPED
Meaning of PINNIPED in English
Britannica English vocabulary. Английский словарь Британика. 2012