adenoid
UK /ˈad.ɪn.ɔɪd/ · US /ˈæd.əˌnɔɪd/ adjective, noun
Forms adenoids
- adjective Of or relating to lymphatic glands or lymphoid tissue.
- adjective Of or pertaining to the adenoids.
- adjective Relating to, affected with, or associated with abnormally enlarged adenoids.
- noun (medicine) an abnormally enlarged mass of lymphatic tissue at the back of the pharynx, often obstructing the nasal and ear passages and hindering speaking and breathing in young children.
- noun (anatomy, usually in the plural) Such a mass when not abnormally enlarged, covered by ciliated epithelium and located in the roof and posterior wall of the nasopharynx at the back of the throat behind the uvula.
Synonyms
lymphoid adenoidal Luschka's tonsil nasopharyngeal tonsil pharyngeal tonsil third tonsil tonsilla adenoidea tonsilla pharyngealis
Etymology
Late 19th century borrowing from French adénoïde, from New Latin adenoīdēs, from Ancient Greek ᾰ̓δενοειδής (ădenoeidḗs, “glandular”), from ᾰ̓δήν (ădḗn, “gland”) + -ο- (-o-) + -ειδής (-eidḗs, “-oid, -like”); equivalent to aden- + -oid. The noun is derived from ellipsis of tumeur adénoïde (“glandular tumor”).
Webster’s 1913
- Glandlike; glandular.
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “adenoid”, CC BY-SA 4.0. Details