Source : Webster's Revised Unabridged Dictionary (1913)

Picus \Pi"cus\, n.; pl. {Pici}. [L., a woodpecker.] (Zo["o]l.)
   A genus of woodpeckers, including some of the common American
   and European species.

Source : WordNet®

Picus
     n : type genus of Picidae [syn: {genus Picus}]