Synonyms for Adenoid (same or very similar meaning)
WordNet sense 1 (a collection of lymphatic tissue in the throat behind the uvula (on the posterior wall and roof of the nasopharynx)):
pharyngeal tonsil, Luschka's tonsil, third tonsil, tonsilla adenoidea, tonsilla pharyngealisFrom the ODE community, based on WordNetadd/edit