in the manege, a chain of iron made fast to the upper part of the branches of the bridle in a hole called the eye, and running over the horse's beard. It consists of these three parts; the hook fixed to the eye of the branch; the chain of SS's or links; and the two rings or mailles. Large curbs, provided they be round, are always most gentle; but care is to be taken that it rest in its proper place, a little above the beard, otherwise the bit-mouth will not have the effect that may be expected from it.

English watering bits have no curbs; the Turkish bits, called genettes, have a ring that serves instead of a curb. See GENETTES.

in Farriery, is a hard and callous swelling on the hind part of the hock, attended with stiffness, and sometimes with pain and lameness. See SPavin.