Webster’s Revised Unabridged Dictionary · 1913
Conservatory
Con·serv′a·to·ry (kŏn·sẽrv′ȧ·tō·ry̆), a. [Cf. F. conservatoire, LL. conservatorius.] Having the quality of preserving from loss, decay, or injury.
Con·serv′a·to·ry, n. [Cf. F. conservatoire, LL. conservatorium.] 1. That which preserves from injury. [Obs.] "A conservatory of life." Jer. Taylor.
2. A place for preserving anything from loss, decay, waste, or injury; particulary, a greenhouse for preserving exotic or tender plants.
3. A public place of instruction, designed to preserve and perfect the knowledge of some branch of science or art, esp. music.