[suh-lair-ee-uh m, soh-]

noun, plural so·lar·i·ums, so·lar·i·a [suh-lair-ee-uh, soh-] /səˈlɛər i ə, soʊ-/.

a glass-enclosed room, porch, or the like, exposed to the sun's rays, as at a seaside hotel or for convalescents in a hospital.


Origin of solarium

1815–25; < Latin sōlārium balcony, terrace, equivalent to sōl the sun + -ārium -ary Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for solarium

Contemporary Examples of solarium

  • She boasts 125 rooms, a heated indoor pool, sauna, Turkish bath, and solarium, as well as a lounge and piano bar.

    The Daily Beast logo
    Gal With a Suitcase

    Jolie Hunt

    January 31, 2010

Historical Examples of solarium

  • Night was moving above her through the dome of the solarium.

    Captives of the Flame

    Samuel R. Delany

  • It was evening in the solarium on top of the General Medical building.

    Captives of the Flame

    Samuel R. Delany

  • The solarium was the external terraced portico, and this still remains.

    Walks in Rome

    Augustus J.C. Hare

  • Above all, in a literal and also commendatory sense of the word, was the solarium.

    Roman Women

    Alfred Brittain

  • Since he slept under the sky, his sleeping-room was also a solarium.

British Dictionary definitions for solarium


noun plural -lariums or -laria (-ˈlɛərɪə)

a room built largely of glass to afford exposure to the sun
a bed equipped with ultraviolet lights used for acquiring an artificial suntan
an establishment offering such facilities

Word Origin for solarium

C19: from Latin: a terrace, from sōl sun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for solarium

1891, "part of a house arranged to receive the sun's rays," earlier "sundial" (1842), from Latin solarium "sundial," also "a flat housetop," literally "that which is exposed to the sun," from sol "sun" (see sol).

Online Etymology Dictionary, © 2010 Douglas Harper