‖n.; pl. Solaria [ L. See Solar, n. ] 1. An apartment freely exposed to the sun; anciently, an apartment or inclosure on the roof of a house; in modern times, an apartment in a hospital, used as a resort for convalescents. [ 1913 Webster ]

2. (Zool.) Any one of several species of handsome marine spiral shells of the genus Solarium and allied genera. The shell is conical, and usually has a large, deep umbilicus exposing the upper whorls. Called also perspective shell. [ 1913 Webster ]

n. (Photog.) Injury of a photographic picture caused by exposing it for too long a time to the sun's light in the camera; burning; excessive insolation. [ 1913 Webster ]

v. t. [ imp. & p. p. Solarized p. pr. & vb. n. Solarizing ] (Photog.) To injure by too long exposure to the light of the sun in the camera; to burn. [ 1913 Webster ]

v. i. (Photog.) To become injured by undue or too long exposure to the sun's rays in the camera; -- an older term now replaced by overexpose. [ 1913 Webster +PJC ]