sprue

(sproo )

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1. In dentistry, the wax, metal, or plastic used to form the aperture(s) through which molten gold or resin will pass to make a casting; also, the part of the casting that later fills the sprue hole.
2. A disease of the intestinal tract characterized by malabsorption, weight loss, abdominal distention, bloating, diarrhea, and steatorrhea.

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