[ oh-don-tuh-blast ]
/ oʊˈdɒn təˌblæst /

noun Anatomy.

one of a layer of cells lining the pulp cavity of a tooth, from which dentin is formed.

Origin of odontoblast

First recorded in 1875–80; odonto- + -blast

Related forms

o·don·to·blas·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for odontoblast


/ (ɒˈdɒntəˌblæst) /


any of a layer of cells lining the pulp cavity of a tooth and giving rise to the dentine

Derived Forms

odontoblastic, adjective
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

Medicine definitions for odontoblast


[ ō-dŏntə-blăst′ ]


One of the cells forming the outer surface of dental pulp that produces tooth dentin.

Related forms

o•don′to•blastic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.