collet

• (General American) IPA^(key): /ˈkɑlɪt/
• (Received Pronunciation) IPA^(key): /ˈkɒlɪt/
• Rhymes: -ɒlɪt
• Hyphenation: col‧let

An example of a collet with a cutting bit designed to fit it

The silver ring with nubs, which holds the sapphire, is the collet.

From French.

collet (plural collets)

1. 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.

   That collet can handle up to 3/8-inch bits.

2. In jewelry, the rim (of a ring) within which a jewel is set. Compare bezel.

   There is an almost invisible collet that secures the stone to the ring.

3. (horticulture) in an embryonic plant, the transition zone between the root and the hypocotyl. (Not clearly distinguishable in most plants.)

   Collar rot forms in the collet between the stem and the root.

Rhizophora development structures and stages, from embryo on parent plant, to rooted seedling, showing collet

collet (plural collets)

1. Alternative form of colet

From col +‎ -et.

• IPA^(key): /kɔ.lɛ/

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collet m (plural collets)

1. (obsolete) collar
2. snare, noose
3. (short) cape
4. (dentistry) neck (of tooth)
5. (botany) neck

• colletin

• “collet” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

From Latin collum (“neck”) (modern co) +‎ -et.

collet m (plural collets)

1. (Jersey) collar
2. (Jersey) oarweed (Laminaria digitata, Laminaria saccharina)