Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A measurement of the air temperature in relation to the relative humidity, used as an indicator of the perceived temperature. Also called apparent temperature, humiture.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A figure used by American meteorologists to describe the apparent heat felt by a person as the result of a combination of temperature and humidity.

Etymologies

From heat + index (Wiktionary)

Examples

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