- belonging to the Pinnipedia, a suborder of carnivores with limbs adapted to an aquatic life, including the seals and walruses.
- a pinniped animal.
- of, relating to, or belonging to the Pinnipedia, an order of aquatic placental mammals having a streamlined body and limbs specialized as flippers: includes seals, sea lions, and the walrus
- any pinniped animal
n.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” (see foot (n.)).
- Any of various carnivorous, aquatic mammals of the group Pinnipedia, which some believe is a suborder of the Carnivora but others consider a separate mammalian order. Pinnipeds have long, smooth bodies and finlike flippers for swimming. Seals and walruses are pinnipeds.