Headstock

·noun The part of a planing machine that supports the cutter, ·etc.

II. Headstock ·noun A part (usually separate from the bed or frame) for supporting some of the principal working parts of a machine.

III. Headstock ·noun The part of a lathe that holds the revolving spindle and its attachments;

— also called poppet head, the opposite corresponding part being called a tailstock.