solarium
/səuˈleərɪəm; so`lɛrɪəm/ n
(pl ~s or, in formal or scientific use, solaria / səuˈleərɪə; so`lɛrɪə/复数作solariums, 作庄重语或科技用语时复数作solaria) 1 place enclosed with glass, where sunlight can be enjoyed or used in treating patients 日光浴室; 日光治疗室.
2 bed equipped with special lights used for giving sb an artificial sun-tan or in treating certain medical conditions 日光浴床（设有特殊灯光, 用以晒黑皮肤或治疗某些疾病）
The new sports centre has saunas and solariums. 新建的运动中心设有蒸汽浴室及日光浴床.