a number representing the effect of temperature and humidity on humans by combining the two variables into an “apparent” temperature, introduced as a replacement for the temperature-humidity index: a temperature of 90° and relative humidity of 65 percent combine to produce a heat index of 102. Abbreviation: H.I.
10 Catchphrases To Help You Succeed At WorkThese idioms will help you achieve success in the workplace. Or at least make you the talk of the water cooler.
The Origin Of Dog DaysIt’s hot again, up in the Northern Hemisphere. It’s that time of year when the sun shines its most unforgiving beams, baking the ground and, indeed, us. It’s the portion of summer known as the hottest time of the year. Or, more delightfully, the dog days. Contrary to common conjecture, the dog days do not take their peculiar name from weather that “isn’t fit for …
- heat engine,
- heat equation,
- heat exchanger,
- heat exhaustion,
- heat gun,
- heat island,
- heat lamp,
- heat lightning,
- heat of combustion,
- heat of condensation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A measurement of the air temperature in relation to the relative humidity, used as an indicator of discomfort. The heat index is higher when high air temperatures occur with high humidity, and lower when they occur with low humidity. The heat index is based on studies of skin cooling caused by the evaporation of sweat. Also called apparent temperature
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.