Meaning of AUK in English

noun Etymology: Norwegian or Icelandic alk, alka, from Old Norse ālka Date: 1674 any of several black-and-white short-necked diving seabirds of the alcid family that breed in colder parts of the northern hemisphere

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.