/ Dictionary / Index A athenaeum: Meaning and Definition of Find definitions for: ath•e•nae•um Pronunciation: (ath"u-nē'um, -nā'-), [key] — n. an institution for the promotion of literary or scientific learning. a library or reading room. (cap.) a sanctuary of Athena at Athens, built by the Roman emperor Hadrian, and frequented by poets and scholars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: athenaeum (Thesaurus) Athena Athenaeus Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language