| Pinnatiped | a. [ L. pinnatus feathered + pes, pedis foot: cf. F. pinnatipède. ] (Zool.) Having the toes bordered by membranes; fin-footed, as certain birds. [ 1913 Webster ] |
| Pinnatiped | n. (Zool.) Any bird which has the toes bordered by membranes. [ 1913 Webster ] |
| pinniped mammal | (n) aquatic carnivorous mammal having a streamlined body specialized for swimming with limbs modified as flippers, Syn. pinniped, pinnatiped |