crayon

(redirected from Chinagraph pencil)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

crayon

a soft color-marking material used in identification especially in sheep.

crayon-marking
marking of ewes by rams wearing crayons on their chests and held there by a harness. By changing the color of the crayon it is possible to date the reproductive events of the flock. See also tupping crayon.