temperature-humidity index
a number representing an estimate of the potentially debilitating effect of temperature and relative humidity on humans and animals, especially livestock: computed essentially as a combination of dry-bulb temperature and wet-bulb temperature but formulaically specific to a given species, as heat-stress tolerances vary significantly from one species to another. Abbreviations: THI, T.H.I.
Origin of temperature-humidity index
1- Compare heat index, wet-bulb depression.
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British Dictionary definitions for temperature-humidity index
an index of the effect on human comfort of temperature and humidity levels, 65 being the highest comfortable level
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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