tonsil

  1. Noun.  (anatomy, immunology) Either of a pair of small masses of lymphoid tissue that lie on each side of the throat and that help protect the body against infection; palatine tonsil.
  2. Noun.  (anatomy, immunology) Any of various small masses of lymphoid tissues, including palatine tonsils, adenoids and lingual tonsils.

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This entry was last updated on RefTopia from its source on 3/20/2012.