the world > animals > mammals > group Ungulata (hoofed) > family Equidae (general equines) > body or parts of horse > [noun] > mouth or type of > teeth > incisor(s) (3)
Usually in plural. An incisor tooth of a horse.
a horse's incisor tooth bearing a mark (sense 20a).
Zoology. Either of a pair of opposed hinged claws, mandibles, etc., with which an arthropod grasps or grips; esp. a chela of a crab or other…