- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dentine
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 Works of Francis Maitland Balfour, Volume III (of 4)
Francis Maitland Balfour
The complexity is greatest in Napaeozapus, which is characterized by numerous additional flexures in the enamel and dentine.North American Jumping Mice (Genus Zapus)
Philip H. Krutzsch
The base is composed of bone: the spine of the somewhat modified bone known as dentine.
- the calcified tissue surrounding the pulp cavity of a tooth and comprising the bulk of the tooth
C19: from denti- + -in
Word Origin and History for dentine
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
- 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.
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.