emperor penguin

noun

1. the largest of the penguins, Aptenodytes forsteri, of the coasts of Antarctica, having bluish-gray and black plumage on the back, head, and wings, a white chest, and a patch of orange on each side of the neck.

noun

1. an Antarctic penguin, Aptenodytes forsteri, with orange-yellow patches on the neck: the largest penguin, reaching a height of 1.3 m (4 ft)