penguin : Idioms & Phrases

• noun medium-sized penguins occurring in large colonies on the Adelie Coast of Antarctica
  Pygoscelis adeliae; Adelie.
  

WordNet

• (Zoöl.), the great auk. See Auk.

Webster 1913

• noun small penguin of the Falkland Islands and New Zealand
  rock hopper.
  

WordNet

• noun the largest penguin; an Antarctic penguin
  Aptenodytes forsteri.
  

WordNet

• noun small penguin of South America and southern Africa with a braying call
  Spheniscus demersus.
  

WordNet

• (Zoöl.), any species of penguin of the genus Spheniscus, of which several are known. One species (S. demersus) inhabits the islands near the Cape of Good Hope; another (S. Magellanicus) is found at the Falkland Islands. They make a noise like the braying of an ass; hence the name.

Webster 1913

• noun large penguin on islands bordering the Antarctic Circle
  Aptenodytes patagonica.
  

WordNet

• (Zoöl.), any large species of penguin of the genus Aptenodytes; esp., A. longirostris, of the Falkland Islands and Kerguelen Land, and A. Patagonica , of Patagonia.

Webster 1913