root canal

root canal

n.

1. A pulp-filled channel in a root of a tooth.

2. A treatment in which diseased tissue from this part of the tooth is removed and the resulting cavity is filled with an inert material.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

root canal

n

(Dentistry) the passage in the root of a tooth through which its nerves and blood vessels enter the pulp cavity

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

root′ canal`

n.

1. the root portion of the pulp cavity of a tooth.

2. root canal therapy (def. 2).

[1890–95]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

root canal - the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity passageway, passage - a path or channel or duct through or along which something may pass; "the nasal passages" pulp cavity - the central cavity of a tooth containing the pulp (including the root canal)

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