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dentin

[den-tn, -tin]
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.
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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 dentine

Historical Examples

  • The teeth are pointed and often have the dentine remarkably folded.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • This models the enamel cap which fits over the dentine like a glove.

    Degeneracy

    Eugene S. Talbot

  • A papilla of the dermis makes its appearance, the outer layer of which gradually calcifies to form the dentine and osseous tissue.

  • The complexity is greatest in Napaeozapus, which is characterized by numerous additional flexures in the enamel and dentine.

  • The base is composed of bone: the spine of the somewhat modified bone known as dentine.

British Dictionary definitions for dentine

dentine

dentin (ˈdɛntɪn)

noun
  1. the calcified tissue surrounding the pulp cavity of a tooth and comprising the bulk of the tooth
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Derived Formsdentinal, adjective

Word Origin

C19: from denti- + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for dentine

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).

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Online Etymology Dictionary, © 2010 Douglas Harper
dentine 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
dentine in Science

dentin

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

dentin

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

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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.