D defs.my
Entry 4 senses Webster, 1913

Atheneum

/ăth'-ən-o͞om/ · Ath·e·ne·um · IPA /ˈæθənuːm/
01 n. A temple of Athene, at Athens, in which scholars and poets were accustomed to read their works and instruct students.
pl. Atheneums, Athenæa
  1. 1.
    A temple of Athene, at Athens, in which scholars and poets were accustomed to read their works and instruct students.(Gr. Antiq.)
  2. 2.
    A school founded at Rome by Hadrian.
  3. 3.
    A literary or scientific association or club.
  4. 4.
    A building or an apartment where a library, periodicals, and newspapers are kept for use.