What is the meaning of Collet?

A band, flange, ferrule, or collar, designed to grip and hold a tool or a workpiece under proper control, and usually to release it under control thereafter; such a collet usually is made of a hard, springy material, especially a metal.

The rim (of a ring) within which a jewel is set.

In an embryonic plant, the transition zone between the root and the hypocotyl (not clearly distinguishable in most plants.)

Alternative form of colet (lower servant in a church).

small hill

diminutive of coll (neck)

the collar of a garment

collar

snare, noose

(short) cape

neck (of tooth)

neck

collar

oarweed

Source: wiktionary.org