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root canal

American  

noun

Dentistry.
  1. Also called pulp canal.  the root portion of the pulp cavity.

  2. Informal. root canal therapy.


root canal British  

noun

  1. 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

Etymology

Origin of root canal

First recorded in 1890–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That can mean someone needing two crowns, root canal work and three filings, for example, would generate the same number of points as someone needing just a single crown.

From BBC

A successful root canal may provide benefits that extend beyond saving a tooth.

From Science Daily

Pressure is building on Mr. Johnson to bring the House back to start over, a prospect almost as appealing as a root canal.

From The Wall Street Journal

He also performed a root canal treatment on the opposing upper canine tooth, which was also found to be infected.

From BBC

"We're getting to a point where it's no longer an option to treat with fillings or root canal."

From BBC