Solarium (noun)

1. A room or area with a glass roof or walls, used for sunbathing or as a greenhouse.
2. An open terrace or balcony, especially one on the roof of a building.
3. A facility that contains sunlamps for artificial tanning.

Origin:

Mid 17th century: from latin, from sol "sun".

Examples:

1. She spent her mornings reading in the solarium.
2. The solarium was filled with plants and provided a beautiful view of the city.
3. Many people use solariums as a way to get a tan without going outside.
4. The solarium was a great place to relax and soak up some sun.
5. The solarium was designed to capture the warmth of the sun, making it the perfect spot to grow tropical plants.