INSOLATION
heliotherapy, insolation
(noun) therapeutic exposure to sunlight
insolation
(noun) incident solar radiation
sunstroke, insolation, thermic fever, siriasis
(noun) sudden prostration due to exposure to the sun or excessive heat
Source: WordNet® 3.1
Etymology
Noun
insolation (usually uncountable, plural insolations)
The incident radiant energy emitted by the sun which reaches a unit area over a period of time, typically measured over a horizontal area at the Earth's surface or at the top of Earth's atmosphere.
The rate of delivery of such radiation.
The act or process of exposing to the rays of the sun, such as for the purpose of medical treatment, drying or maturing, as fruits, drugs, etc, or of rendering acid, as vinegar.
(medicine, dated) sunstroke.
Synonyms
• (exposure as medical treatment): sunbath
Source: Wiktionary
In`so*la"tion, n. Etym: [L. insolatio: cf. F. insolation.]
1. The act or process to exposing to the rays of the sun fro the
purpose of drying or maturing, as fruits, drugs, etc., or of
rendering acid, as vinegar.
2. (Med.)
(a) A sunstroke.
(b) Exposure of a patient to the sun's rays; a sun bath.
Source: Webster’s Unabridged Dictionary 1913 Edition