I. anas
plural of ana
II. an·as ˈanəs noun
Usage: capitalized
Etymology: New Latin, from Latin, duck; akin to Old English æned duck, Old Saxon anad, Old High German enit, anut, Old Norse önd, Lithuanian ántis, and perhaps to Greek nassa, nēssa duck, and perhaps to Sanskrit āti aquatic bird
: the type genus of Anatidae comprising a large number of widely distributed freshwater ducks (as the mallard and black duck)