n. In ceramics, a vitrified substance, either transparent or opaque, applied as a coating to pottery and porcelain of many kinds.n. In the fine arts, a vitreous substance or glass, opaque or transparent, and variously colored, applied as a coating on a surface of metal or of porcelain (see def. 1) for purposes of decoration.n. Enamel-work: a piece or sort of work whose chief decorative quality lies iu the enamel itself: as, a fine piece of cloisonné enamel; a specimen of enamel à jour.n. Any smooth, glossy surface resembling enamel, but produced by means of varnish or lacquer, or in some other way not involving vitrification: as, the enamel of enameled leather, paper, slate, etc.n. In anatomy, the hardest part of a tooth; the very dense, smooth, glistening substance which crowns a tooth or coats a part of its surface: distinguished from dentin and from cement.n. Figuratively, gloss; polish.n. In cosmetics, a coating applied to the skin, giving the appearance of a beautiful complexion.To lay enamel upon; cover or decorate with enamel.To form a glossy surface like enamel upon: as, to enamel cardboard; specifically, to use an enamel upon the skin.To variegate or adorn with different colors.To practise the use of enamel or the art of enameling.n. The firm white substance which covers the bony scales of some ganoid fishes.