- a metal band or ring, such as is used in a watch to hold the end of a balance spring
- a small metal band used in ring settings
- a chuck with a conical or tapered end, for gripping circular pieces to be turned on a lathe
Origin: French diminutive of col, the neck ; from Classical Latin collum: see collar
Used by arrangement with John Wiley & Sons, Inc.
- A cone-shaped sleeve used for holding circular or rodlike pieces in a lathe or other machine.
- A metal collar used in watchmaking to join one end of a balance spring to the balance staff.
- A circular flange or rim, as in a ring, into which a gem is set.
Origin: French, diminutive of col, collar, from Latin collum, neck; see kwel-1 in Indo-European roots.