Definition of "enamel"

enamel¹

/ɪˈnæməl/

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

enamel²

/ɪˈnæməl/

verb
third-person singular simple present enamels, present participle (US) enameling or (UK) enamelling, simple past and past participle (US) enameled or (UK) enamelled
1. (transitive) To coat or decorate with enamel.
  Quotations
  Their plumed helmes are wrought with beaten golde,Their ſwords enameld, and about their neckesHangs maſſie chaines of golde downe to the waſte,In euery part exceding braue and rich.
  c. 1587–1588, [Christopher Marlowe], Tamburlaine the Great. […] The First Part […], 2nd edition, part 1, London: […] [R. Robinson for] Richard Iones, […], published 1592; reprinted as Tamburlaine the Great (A Scolar Press Facsimile), Menston, Yorkshire, London: Scolar Press, 1973, (please specify the page)
2. (transitive) To variegate with colours, as if with enamel.
  Quotations
  Oft he [the serpent] bowed / His turret crest and sleek enamelled neck.
  1667, John Milton, “Book IX”, in Paradise Lost. […], London: […] [Samuel Simmons], […]; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873,
3. (transitive) To form a glossy surface like enamel upon.
4. (transitive) To disguise with cosmetics, as a woman's complexion.