pinniped(n = noun.animal) pinnatiped, pinniped mammal - aquatic carnivorous mammal having a streamlined body specialized for swimming with limbs modified as flippers;
is a kind of aquatic mammal
is a member of pinnipedia, suborder pinnipedia, pod
has particulars: seal, sea horse, seahorse, walrus
One of the Pinnipedia; a seal. [1913 Webster]
pinniped, adj. & n.
--adj. denoting any aquatic mammal with limbs ending in fins.
--n. a pinniped mammal.
Etymology:
L pinna fin + pes ped- foot