I. ˈa-də-ˌnȯid, ˈad-ˌnȯid noun
Etymology: Greek adenoeidēs glandular, from adēn
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
II. adjective
Date: circa 1947
1. : of or relating to the adenoids
2. : relating to, affected with, or associated with abnormally enlarged adenoids
a severe adenoid condition
adenoid facies