a room whose walls are mainly made of glass, or which has special lamps, where people go to get a suntan (= make their skin go brown) using light from the sun or artificial light
سولاریوم, آفتابخانه, اتاق آفتابگیر, اتاق خورشیدی, سالن آفتابتاب, سالن خورشید-مصنوعی