noun a small collar or neckband.
2. collet ·noun the part of a ring containing the bezel in which the stone is set.
3. collet ·- an inferior church servant. ·see acolyte.
4. collet ·noun the flat table at the base of a brilliant. ·see ·illust. of brilliant.
5. collet ·noun a small metal ring; a small collar fastened on an arbor; as, the collet on the balance arbor of a watch; a small socket on a stem, for holding a drill.