—n. 1. Metall. a. an opening through which molten metal is poured into a mold.
b. the waste metal left in this opening after casting.
2. Metalworking.a channel in a forging die permitting the die to clear that part of the rough piece not being forged.
—v.t. to cut the sprues from (a casting).
Pronunciation: (sprOO),[key] —n.Pathol. a chronic disease, occurring chiefly in the tropics, resulting from malabsorption of nutrients from the small intestine and characterized by diarrhea, ulceration of the mucous membrane of the digestive tract, and a smooth, shining tongue; psilosis.