Origin of root canal
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the passage in the root of a tooth through which its nerves and blood vessels enter the pulp cavity
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
The chamber of the dental pulp lying within the root portion of a tooth.pulp canal
A treatment in which diseased tissue from this part of the tooth is removed and the resulting cavity is filled with an inert material.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.