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dentin

[den-tn, -tin]
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noun Dentistry.
  1. the hard, calcareous tissue, similar to but denser than bone, that forms the major portion of a tooth, surrounds the pulp cavity, and is situated beneath the enamel and cementum.
Also den·tine [den-teen] /ˈdɛn tin/.

Origin of dentin

First recorded in 1830–40; dent- + -in2
Related formsden·tin·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for dentin

Historical Examples

  • Still, it can easily be renewed, or if all the tin is removed we find the dentin hard and firm.

    Tin Foil and Its Combinations for Filling Teeth

    Henry L. Ambler

  • Nature will not restore the lost part, but will do the next best thing—solidify the dentin.

  • The effect is to cause the surface exposed to dentin to oxidize more than tin would do alone; in that there is a benefit.

Word Origin and History for dentin

n.

also dentine, the hard substance in teeth, 1836, from comb. form of Latin dens (genitive dentis) "tooth" (see tooth) + chemical suffix -in (2).

Online Etymology Dictionary, © 2010 Douglas Harper
dentin in Medicine

dentin

(dĕn′tĭn)
n.
  1. The main, calcareous part of a tooth, beneath the enamel and surrounding the pulp chamber and root canals.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
dentin in Science

dentin

[dĕn′tĭn]
  1. The main bony part of a tooth beneath the enamel, surrounding the pulp chamber and root canals.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
dentin in Culture

dentin

The hard, bony material beneath the enamel of a tooth. The bulk of a tooth is made up of dentin.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.