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