(n.) A name given to various species of arctic sea birds of the family Alcidae. The great auk, now extinct, is Alca (/ Plautus) impennis. The razor-billed auk is A. torda. See Puffin, Guillemot, and Murre.
AUK
Meaning of AUK in English
Webster's English dictionary. Английский словарь Webster. 2012