The Collaborative International Dictionary
Pinnigrada
Pinnigrada \Pin`ni*gra"da\, n. pl. [NL., fr. pinna a feather + gradi to walk, move.] (Zo["o]l.) Same as Pinnipedia.
Usage examples of "pinnigrada".
The Pinnipedia or Pinnigrada are amphibious in their habits, living chiefly in the water, but resorting occasionally to the land.