Definition of insolation in English:



  • 1Exposure to the sun's rays.

    • ‘The perforation pattern was carefully designed to maintain visual connectivity to the exterior while minimizing glare and insolation.’
    • ‘The glass panels are in fact triple-glazed units, with blinds in the wider cavity automatically activated to cut down insolation.’
    • ‘While not advocating planar glazing, I wonder if there couldn't have been a less strident approach to making the glass walls, which themselves are causing some problems of insolation and glare.’
    • ‘In summer, various shading devices including adjustable sun protecting blinds and coloured curtains reduce insolation.’
    • ‘More exposed microsites receive more insolation, which may be energetically advantageous to incubating birds.’
    1. 1.1The amount of solar radiation reaching a given area.
      • ‘In the annual cycle experiments, however, low winter insolation causes the seaways to freeze.’
      • ‘Actual insolation at Earth's surface and latitude ~ 33° N, some weeks after the autumnal equinox, will of course be less than this; let's call it an even 1 kilowatt per square meter.’
      • ‘The procedure selected the following four variables: direct insolation, slope, Ca and total nitrogen.’
      • ‘Surface temperature affects the extent of habitat suitable for temperature sensitive species and is directly linked to insolation, air temperature, and wind.’
      • ‘Long-term changes in the Earth's orbit are believed to cause a redistribution of insolation across both hemispheres, and these changes, in turn, lead to changes in climate.’


Early 17th century: from Latin insolatio(n-), from the verb insolare, from in- toward + sol sun.