Source : Webster's Revised Unabridged Dictionary (1913)

Pierid \Pi"er*id\, n. [See {Peirides}.] (Zo["o]l.)
   Any butterfly of the genus {Pieris} and related genera. See
   {Cabbage butterfly}, under {Cabbage}.

Source : WordNet®

pierid
     n : any of numerous pale-colored butterflies having three pairs
         of well-developed legs [syn: {pierid butterfly}]