n.
Pronunciation: ' a-d ə - ˌ no ̇ id, ' ad- ˌ no ̇ id
Function: noun
Etymology: Greek adenoeid ē s glandular, from ad ē n
Date: circa 1890
: either of two abnormally enlarged masses of lymphoid tissue at the back of the pharynx that usually obstruct the nasal and ear passages also : such a mass when not abnormally enlarged ― usually used in plural