/ad"n oyd'/ , n.
1. Usually, adenoids . an enlarged mass of lymphoid tissue in the upper pharynx, often obstructing breathing through the nasal passages. See diag. under tonsil .
adj.
2. of or pertaining to the lymph glands.
3. of or pertaining to the adenoids.
[ 1830-40; adenoeidés. See ADEN-, -OID ]