root canal
noun Dentistry.
Also called pulp canal.
the root portion of the pulp cavity.
Informal.
root canal therapy(def 2).
Origin of root canal
First recorded in 1890–95
Words nearby root canal
roosterfish,
root,
root amputation,
root and branch,
root beer,
root canal,
root canal therapy,
root cap,
root caries index,
root cellar,
root climber
British Dictionary definitions for root canal
root canal
noun
the passage in the root of a tooth through which its nerves and blood vessels enter the pulp cavity
Medical definitions for root canal
root canal
n.
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.