a glassed-in porch, room, etc. where people sun themselves, as in treating illness
Origin of solariumL, sundial, place exposed to the sun from sol, the sun: see Sol
nounpl. so·lar·i·a, or so·lar·i·ums
A room, gallery, or glassed-in porch exposed to the sun.
Origin of solariumLatin sōlārium terrace, flat housetop from sōl sun ; see sāwel- in Indo-European roots.
(plural solariums or solaria)
From Latin sÅlÄrium.