conservatory
noun
[ kənˈsəːvət(ə)ri ]
• a room with a glass roof and walls, attached to a house at one side and used as a sun lounge or for growing delicate plants.
• "keep plant cuttings in a frost-free conservatory or greenhouse"
• another term for conservatoire.
Origin:
mid 16th century (denoting something that preserves): from late Latin conservatorium, from conservare ‘to preserve’ (see conserve).
