ornithorhynchus

from WordNet (r) 3.0 (2006)

Ornithorhynchus
    n 1: type genus of the family Ornithorhynchidae [syn:
         {Ornithorhynchus}, {genus Ornithorhynchus}]

from The Collaborative International Dictionary of English v.0.48

Ornithorhynchus \Or`ni*tho*rhyn"chus\, prop. n. [NL., fr. Gr.
   'o`rnis, 'o`rniqos, a bird + ? snout, beak.] (Zool.)
   A genus of monotremes including the platypus ({Ornithorhyncus
   anatinus}). See {Duck mole}, under {Duck}.
   [1913 Webster]