Sprue, n.
n. 1. (Founding.) (a.) Strictly, the hole through which melted metal is poured into the gate, and thence into the mold. (b.) The waste piece of metal cast in this hole; hence, dross or scoria. 2. (Med.) The same as SPREW, q. v.
n. 1. (Founding.) (a.) Strictly, the hole through which melted metal is poured into the gate, and thence into the mold. (b.) The waste piece of metal cast in this hole; hence, dross or scoria. 2. (Med.) The same as SPREW, q. v.