pulp cavity

Noun
  1. The central cavity of a tooth containing the pulp (including the root canal) (synset 105290825)
    is a type of: bodily cavity, cavity, cavum - (anatomy) a natural hollow or sinus within the body
    has: root canal - the passage in the root of a tooth through which its nerve and blood vessels enter the pulp cavity
    is a part of: tooth - hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense

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