a room (or sometimes a building) with glass walls and a glass roof. Conservatories are used for sitting in to enjoy the sun, and to protect plants from cold weather. （靠房屋一侧用玻璃建造的）温室，暖房 
- (North American English) (British English conservatoire)
a school or college at which people are trained in music and theatre 音乐（或戏剧）专科学校（或学院）
Word Originmid 16th cent. (denoting something that preserves): from late Latin conservatorium, from conservare ‘to preserve’, from con- ‘together’ + servare ‘to keep’.