sprue

Etymology 1

From Dutch spruw, sprouw. First described by William Hillary.

noun

1. (medicine) A tropical disease causing a sore throat and tongue, and disturbed digestion; psilosis.

Etymology 2

Unknown.

noun

1. (founding) The hole through which melted metal is poured into the gate, and thence into the mold.
2. (founding) Material that cools in the feed channels to a mold.

verb

1. To remove the sprues (material left in feed channels) from a cast piece.
   In the brass spruing room is what is known as a Todd water tumbler, used for brass castings. 1882 August 15, “Details of a brass and iron foundry”, in American Machinist, page 3
   The pattern is completed in its final contour, is then sprued, invested and burned out of the investment, and the gold alloy is cast in the same manner as when the indirect technique is utilized 1976, Hazel Torres, Ann Beard Ehrlich, Modern Dental Assisting, page 662