Definition of: collar

(kol′ər) noun
1. An article worn about the neck, as a band or circlet of some fabric, worn as an article of dress; the neckpiece of a garment.
2. A band of leather or metal for the neck of an animal.
3. Biol. a A ring or band on or about anything, as in certain plants and insects. b A growth of fur or ring of color about the neck of an animal.
4. Mech. Any of various cylindrical or ring-shaped devices used to limit or control the action of machine parts, secure stability, etc.
—v.t.
1. To grasp by or provide with a collar.
2. To take possession of; capture. [<AF coler <L collare <collum neck]