sprue /spɹuː/noun 3verb 1forms 4 noun3 •A channel through which molten metal is poured into the mold during the casting process. •A tropical disease causing a sore throat and tongue, and disturbed digestion; psilosis. •Material that cools in the feed channels to a mold. verb1 •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 formssprued · sprueing · spruing · sprues
