Heat Index (noun) Definition, Meaning & Examples

noun Meteorology.
  1. a formulaically calculated approximation of how hot it feels given the temperature of the air combined with the relative humidity, based on the fact that an actual temperature will feel warmer as the relative humidity rises and causes a decrease in the natural evaporative cooling from perspiration. Abbreviations: HI, H.I.
    Heat Index (noun) Definition, Meaning & Examples

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