dis·co·theque also dis·co·thèque 
(dĭskə-tĕk′, dĭs′kə-tĕk)
(dĭskə-tĕk′, dĭs′kə-tĕk)n.
A nightclub that features dancing to recorded or sometimes live music and often has showy decor and elaborate lighting.
[French, record library, discothèque, from Italian discoteca, record library : disco, disk, record (from Latin discus, quoit; see DISCUS) + biblioteca, library (from Latin bibliothēca; see BIBLIOTHECA).]