Source : Webster's Revised Unabridged Dictionary (1913)

Anseres \An"se*res\, n. pl. [L., geese.] (Zo["o]l.)
   A Linn[ae]an order of aquatic birds swimming by means of
   webbed feet, as the duck, or of lobed feet, as the grebe. In
   this order were included the geese, ducks, auks, divers,
   gulls, petrels, etc.

Source : WordNet®

Anseres
     n : used in some especially older classifications; coextensive
         with the family Anatidae [syn: {suborder Anseres}]