Main Entry: in·so·la·tion

Pronunciation: \ˌin-(ˌ)sō-ˈlā-shən\

Function: noun

Etymology: French or Latin; French, from Latin insolation-, insolatio, from insolare to expose to the sun, from in- + sol sun — more at solar

Date: 1617

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