noun🔗ShareAlcasAny of several species of Arctic sea birds of the family Alcidae."During our boat trip to the Arctic, we saw many auks nesting on the rocky cliffs. "Durante nuestro viaje en barco al Ártico, vimos muchas alcas anidando en los acantilados rocosos.birdanimalbiologynatureoceanecologyChat with AIVocabulary GamePractice Reading