yapok

 
Pronunciation: /ˈjapɒk/

noun

  • a semiaquatic carnivorous opossum with dark-banded grey fur and webbed hind feet, native to tropical America. Also called water opossum.
    • Chironectes minimus, family Didelphidae

Origin:

early 19th century: from Oyapock, the name of a north Brazilian river