insolation
noun
in·so·la·tion ˌin-(ˌ)sō-ˈlā-shən 
1
: exposure to the sun's rays
2
: sunstroke
3
a
: solar radiation that has been received
b
: the rate of delivery of direct solar radiation per unit of horizontal surface
broadly : that relating to total solar radiation
Example Sentences
Recent Examples on the Web After more than a year out of their routines, some of it in insolation, her audience wanted to connect more than ever. 
Globe Staff, BostonGlobe.com, 29 June 2022 Both players missed the past five games while in insolation and are questionable to play Wednesday night against Boston, the second straight matchup between the two teams. James Boyd, The Indianapolis Star, 12 Jan. 2022 The drill core reveals that the climate of East Africa was largely influenced by changes in solar insolation, which led to either wet or dry climate conditions. David Bressan, Forbes, 16 June 2021 His concerns over the growing realities of global warming led to a controversial foray into theoretical geoengineering, proposing injection of sulfur gases into the atmosphere to reduce insolation. Colin Waters, Scientific American, 5 Feb. 2021 The same thing happens in summer — there’s a delay between when solar insolation is at its maximum (the summer solstice in June) and when the hottest months are (usually July or August). Brian Resnick, Vox, 18 Dec. 2018
Globe Staff, BostonGlobe.com, 29 June 2022 Both players missed the past five games while in insolation and are questionable to play Wednesday night against Boston, the second straight matchup between the two teams. James Boyd, The Indianapolis Star, 12 Jan. 2022 The drill core reveals that the climate of East Africa was largely influenced by changes in solar insolation, which led to either wet or dry climate conditions. David Bressan, Forbes, 16 June 2021 His concerns over the growing realities of global warming led to a controversial foray into theoretical geoengineering, proposing injection of sulfur gases into the atmosphere to reduce insolation. Colin Waters, Scientific American, 5 Feb. 2021 The same thing happens in summer — there’s a delay between when solar insolation is at its maximum (the summer solstice in June) and when the hottest months are (usually July or August). Brian Resnick, Vox, 18 Dec. 2018 Word History
Etymology
French or Latin; French, from Latin insolation-, insolatio, from insolare to expose to the sun, from in- + sol sun — more at solar
First Known Use
1617, in the meaning defined at sense 1
Medical Definition
insolation
noun
in·so·la·tion ˌin(t)-(ˌ)sō-ˈlā-shən, in-ˌsō-
1
: exposure to the rays of the sun
2
: sunstroke