so ‧ lar ‧ i ‧ um /səʊˈleəriəm $ soʊˈler-/ BrE AmE noun [countable]
[ Date: 1800-1900 ; Language: Latin ; Origin: sol ; ⇨ ↑ solar ]
1 . a place with ↑ sunbed s (=beds with special lamps) , where you can get a ↑ suntan
2 . a room, usually enclosed by glass, where you can sit in bright sunlight