Enamel
/ɪˈnæməl/
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Definition
(noun) An opaque, glassy coating baked onto metal or ceramic objects.
Sentence Examples
Tooth enamel is the hardest substance in your body.
Tooth enamel is mostly composed of hydroxyapatite.
CEFR Practice Quiz
The jeweler applied a vibrant blue ____ to the surface of the locket.