- pinniped (n.)
[pinniped 词源字典]
- 1842, from Modern Latin Pinnipedia, suborder of aquatic carnivorous mammals (seals and walruses), literally "having feet as fins," from Latin pinna in secondary sense "fin" (see pin (n.)) + pes, genitive pedis "foot," from PIE root *ped- (1) "a foot" (see foot (n.)).[pinniped etymology, pinniped origin, 英语词源]