crop

n. 1 a produce of cultivated plants, esp. Cereals. B season's yield. 2 group, yield, etc., of one time or place (a new crop of students). 3 handle of a whip. 4 a very short haircut. B cropping of hair. 5 pouch in a bird's gullet where food is prepared for digestion. v. (-pp-) 1 a cut off. B bite off. 2 cut (hair etc.) Short. 3 (foll. By with) sow or plant (land) with a crop. 4 (of land) bear a crop.  crop up occur unexpectedly. [old english]

n. The pouchlike enlargement of the gullet of birds, serving as a receptacle for food; the craw.