DictionarytonsilImmune tissue in the throat
noun

tonsil

TAHN-suhl/ˈtɑːnsl/

A mass of immune tissue at the back of the throat.

The two tonsils sit on either side of the throat.

An isolated anatomical view into an open mouth shows the two palatine tonsils on either side of the throat.
Etymology

The Latin name treats the tonsil as a small swelling: it is a diminutive of a word meaning “goiter.” That underlying word may be of Gaulish origin.

In context

Med School Made Easy1:26
So, if you have a tonslectomy, this is going to be the tonsil that gets removed or collection of lymphoid tissue.
Basic Mouth and Throat Anatomy: Anesthesia and ENT Basics

More examples

  • The doctor notices that one tonsil is swollen.
  • Your tonsils help your immune system fight infections.
  • She had her tonsils removed after repeated throat infections.

Forms

tonsil · tonsils

tonsillitis noun — Inflammation of one or both tonsils.

tonsillectomy noun — Surgical removal of the tonsils.