enamel

Short definition from Wiktionary

Noun

1. 1
   An opaque, glassy coating baked onto metal or ceramic objects.
2. 2
   A coating that dries to a hard, glossy finish.
3. 3
   The hard covering on the exposed part of a tooth.
4. 4
   A cosmetic intended to give the appearance of a smooth and beautiful complexion.

Verb

1. 1
   To coat or decorate with enamel.
2. 2
   To variegate with colours, as if with enamel.
3. 3
   To form a glossy surface like enamel upon.
4. 4
   To disguise with cosmetics, as a woman's complexion.