Pronunciation: (kol'it), [key]
—n., v., -let•ed, -let•ing.
1. a collar or enclosing band.
2. the enclosing rim within which a jewel is set.
3. a slotted cylindrical clamp inserted tightly into the tapered interior of a sleeve or chuck on a lathe to hold a cylindrical piece of work.
4. Horol.the tiny collar that supports the inner terminal of a hairspring.
to set (a gem or other stone) in a collet.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.