Source : Webster's Revised Unabridged Dictionary (1913)

Crucifer \Cru"ci*fer\ (-f?r), n. [See {Cruciferous}.] (Bot.)
   Any plant of the order {Crucifer[ae]}.

Source : WordNet®

crucifer
     n : any of various plants of the family Cruciferae [syn: {cruciferous
         plant}]