Defn: Shaped like a fin or feather. Sir J. Hill.
PINNIGRADA Pin`ni*gra"da, n. pl. Etym: [NL., fr. pinna a feather + gradi to walk, move.] (Zoöl.)
Defn: Same as Pinnipedia.
PINNIGRADE
Pin"ni*grade, n. (Zoöl.)
Defn: An animal of the seal tribe, moving by short feet that serve as paddles.
PINNIPED Pin"ni*ped, n. Etym: [L. pinna feather, fin + pes, pedis, a foot: cf. F. pinnipède.] (Zoöl.) (a) One of the Pinnipedia; a seal. (b) One of the Pinnipedes.
PINNIPEDES
Pin*nip"e*des, n. pl. Etym: [NL.] (Zoöl.)
Defn: Same as Steganopodes.
PINNIPEDIA Pin`ni*pe"di*a, n. pl. Etym: [NL. So called because their webbed feet are used as paddles or fins.] (Zoöl.)
Defn: A suborder of aquatic carnivorous mammals including the seals and walruses; — opposed to Fissipedia.