greenhouse effect



  • noun the effect produced by the accumulation of carbon dioxide crystals and water vapour in the upper atmosphere, which insulates the earth and raises the atmospheric temperature by preventing heat loss


  • The conversion of the sun's rays into heat that is retained by the glass roof of a greenhouse.
  • The steady, gradual rise in temperature of the earth's atmosphere due to heat that is retained by layers of ozone, carbon dioxide, and water vapor.