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insolation1

[in-soh-ley-shuh n]
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noun
  1. exposure to the sun's rays, especially as a process of treatment.
  2. sunstroke.

Origin of insolation1

First recorded in 1605–15, insolation is from the Latin word insōlātiōn- (stem of insōlātiō). See insolate, -ion

insolation2

[in-soh-ley-shuh n]
noun Meteorology.
  1. solar radiation received at the earth's surface.

Origin of insolation2

in(coming) sol(ar radi)ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for insolation

insolation

noun
  1. the quantity of solar radiation falling upon a body or planet, esp per unit area
  2. exposure to the sun's rays
  3. former name for sunstroke
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

insolation in Science

insolation

[ĭn′sō-lāshən]
  1. The solar radiation striking Earth or another planet.
  2. The rate of delivery of solar radiation per unit of horizontal surface.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.