Greenhouse (noun)

A building with walls and roof of glass or other transparent material in which temperature and humidity can be controlled to promote the growth of plants, especially those that require protection from cold.

Origin:

Early 18th century: from green (adjective) + house.

Examples:

1. The greenhouse was full of exotic plants.
2. The tomatoes were grown in a greenhouse.
3. He built a greenhouse in his backyard.
4. The greenhouse was heated to keep the plants warm.
5. The greenhouse was a great place to relax and enjoy nature.