Shrĭnk'ing-head, n.
n. (Founding.) A body of molten metal connected with a mold for the purpose of supplying metal to compensate for the shrinkage of the casting;—called also sinking-head and riser. Hobbes.
n. (Founding.) A body of molten metal connected with a mold for the purpose of supplying metal to compensate for the shrinkage of the casting;—called also sinking-head and riser. Hobbes.