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Definition of "dentin" [dentin]

  • The main, calcareous part of a tooth, beneath the enamel and surrounding the pulp chamber and root canals. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "dentin" in a sentence
  • "Underneath that ceramic-like covering, dentin is like hard clay reinforced by fibers of collagen, similar to the way adobe bricks contain clay reinforced by straw fibers."
  • "Normal dentin is twice as stiff as pinewood, but damaged dentin is more like rubber, which makes it pretty hard to chew with."
  • "Most of the tooth is made up of dentin, which is located directly below the enamel."