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ου (τὸ) Mouseion (Muséum) :
1 colline d’Athènes, près de l’Acropole, PAUS. 1, 25, 8 ;
2 lieu de Béotie, PLUT. Syll. 17.
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LSJ
τό, shrine of the Muses, seat or haunt of the Muses, Aeschin. 1.10; hence, home of music or poetry, μουσεῖα θρηνήμασι ξυνῳδά choirs chiming in with dirges, E. Hel. 174 (lyr.); ἀηδόνων μ.
choir of nightingales, Id. Fr. 88; parodied χελιδόνων μουσεῖα Ar. Ra. 93; τὸ Νυμφῶν νᾶμά τε καὶ μ. λόγων Pl. Phdr. 278b (but μουσεῖα λόγων, οἷον διπλασιολογία κτλ.
gallery of tropes, ib. 267b); generally, school of art or letters, τὸ τῆς Ἑλλάδος μ., of Athens, Ath. 5.187d, cf. Plu. 2.736d; τὸ τῆς φύσεως μ., a phrase of Alcidamas censured by Arist. Rh. 1406a25.
a Museum, i.e.
a philosophical school and library, such as that of Plato at Athens, D.L. 4.1, etc. ; at Alexandria, Str. 17.1.8, BMus.Inscr. 1076 (Antinoe), etc. ; περιπατοῦν M. ΄a walking library΄, of Longinus, Eun. VS p. 456 B.
the Museum, a hill at Athens, Paus. 1.25.8. as the title of a book, Alcid. ap. Stob. 4.52.22. Μουσεῖα, τά, festival of the Muses, Paus. 9.31.2; sg., Ath. 14.629a; τὰ Μ. θῦσαι Phld. Acad.Ind. p. 41 M.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)