n Any of several flightlesssea birds, of orderSphenisciformes, found in the Southern Hemisphere; marked by their usual upright stance, walking on short legs, and (generally) their stark black and white plumage. (defdate|from 16th c.)
n (slang) A nun (because of the black and white habit).
n (juggling) A type of catch where the palm of the hand is facing towards the leg with the arm stretched downward, resembling the flipper of a penguin.
n (botany) A spinybromeliad with egg-shaped fleshy fruit.