/ Dictionary / Index H hyperadenosis: Meaning and Definition of Find definitions for: hy•per•ad•e•no•sis Pronunciation: (hī"pur-ad"n-ō'sis), [key] — n. Pathol. abnormal enlargement of the glands, esp. of the lymph nodes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyperactivity hyperaemia Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language