Tonsil

Noun

 * 1)  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)  Any of various small masses of lymphoid tissues, including palatine tonsils, adenoids and lingual tonsils.

Synonyms

 * tonsilla

Hyponyms

 * cerebellar tonsil
 * faucial tonsil
 * lingual tonsil
 * palatine tonsil
 * pharyngeal tonsil
 * adenoid