AVIFAUNA Meaning of AVIFAUNA in English — avifaunal , adj. — avifaunally , adv./ay'veuh faw"neuh, av'euh/ , n.the birds of a given region, considered as a whole. [ 1870-75; AVI- + FAUNA ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012