Definition of "solarium" []

• A room, gallery, or glassed-in porch exposed to the sun. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Actually the pool is at the back of the house and separates the solarium from the master bedroom."
• "The solarium was a small breakfast room set to the side of the dining room."
• "The solarium was the size of a small concert hall."