Mān'drel, n.

n. [Fr. mandrin, from Gr. μάνδρα, an inclosed space, the bed in which the stone of a ring is set.] (Mach.) (a.) A bar of metal inserted in the work to form it, or to hold it as in a lathe, during the process of manufacture. (b.) The spindle which carries the center-chuck of a lathe, and communicates motion to the work. It is usually driven by a pulley. (c.) An arbor. [Written also manderil.]