Definition: Enamel is the hard calcified tissue that covers and protects the outside of the tooth, the part that is above the gum line. Enamel is also the hardest substance in our body.
Pronunciation: E-nam-el
From Tammy Davenport, former About.com Guide
Updated: June 6, 2007
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
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