Opening to a mold

• Metal left over after casting
• A chronic disorder that occurs in tropical and nontropical forms and in both children and adults
• Dross
• Nutrients are not absorbed
• Waste metal
• Symptoms include foul-smelling diarrhea and emaciation

Wikipedia Word definitions in Wikipedia
A sprue may refer to: Sprue (manufacturing) , a feature in molding and casting molds Coeliac disease , also known as sprue, a disease of the small intestine Tropical sprue , disease Sprue Asparagus , first pickings of asparagus

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Sprue \Sprue\ (spr[udd]), n. [Etymol. uncertain.] (Founding) Strictly, the hole through which melted metal is poured into the gate, and thence into the mold. The waste piece of metal cast in this hole; hence, dross. (Med.) Same as Sprew .

Wiktionary Word definitions in Wiktionary
Etymology 1 n. (context medicine English) A tropical disease causing a sore throat and tongue, and disturbed digestion; psilosis. Etymology 2 n. 1 (context founding English) The hole through which melted metal is poured into the gate, and thence into the ...