The Collaborative International Dictionary of English v.0.48:

Meleagris \Mel`e*a"gris\, prop. n. [L., the Guinea fowl.]
   (Zool.)
   A genus of American gallinaceous birds, including the common
   turkey and the wild turkeys.
   [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

Meleagris
    n 1: type genus of the Meleagrididae: wild and domestic turkeys
         [syn: Meleagris, genus Meleagris]