insolation

in·so·la·tion

noun \ˌin-(ˌ)sō-ˈlā-shən\

Definition of INSOLATION

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

Origin of INSOLATION

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