The Collaborative International Dictionary of English v.0.48:

Rasorial \Ra*so"ri*al\ (r[.a]*z[=o]"r[i^]*al; 277), a. (Zool.)
   Of or pertaining to the Rasores, or gallinaceous birds, as
   the peacock, domestic fowl, partridge, quail, and the like.
   [1913 Webster]