1. a greenhouse or conservatory designed for growing and displaying orange trees and other citrus plants, especially in cool climates.
Usage: often capitalized when referring to a specific historic building; from French

Examples

• The palace's orangerie housed hundreds of potted orange and lemon trees during the winter months.
• Visitors toured the restored orangerie to see the collection of rare citrus varieties.
• In the 17th century, European nobility competed to build the most impressive orangeries.
• The orangerie at Versailles is one of the largest and most famous in the world.
• During summer, the orange trees from the orangerie were moved outside to the garden.