enamel

enamel is a Noun

Definition:

[1] A variety of glass, used in ornament, to cover a surface, as of metal or pottery, and admitting of after decoration in color, or used itself for inlaying or application in varied colors.

[2] A glassy, opaque bead obtained by the blowpipe.

[3] That which is enameled; also, any smooth, glossy surface, resembling enamel, especially if variegated.

[4] The intensely hard calcified tissue entering into the composition of teeth. It merely covers the exposed parts of the teeth of man, but in many animals is intermixed in various ways with the dentine and cement. Enamel painting, painting with enamel colors upon a ground of metal, porcelain, or the like, the colors being afterwards fixed by fire. -- Enamel paper, paper glazed a metallic coating.