relative humidity

relative humidity
Humidity Hu*mid"i*ty, n. [Cf. F. humidit['e].] 1. Moisture; dampness; a moderate degree of wetness, which is perceptible to the eye or touch; -- used especially of the atmosphere, or of anything which has absorbed moisture from the atmosphere, as clothing. [1913 Webster]

2. Specifically: The content of water vapor in the air, expressed as a percent of the maximum amount of water vapor that the air can hold at the given temperature; also called {relative humidity}. The capacity of the air to hold moisture increases with temperature, so if the temperature changes without changing the absolute content of the atmospheric moisture, the relative humidity will also change. [PJC]

{relative humidity} Same as {humidity}[2]. [PJC]

Note: In hygrometrical reports (as of the United States Signal Service) complete saturation of the air by water vapor is designated by a relative humidity of 100, and its partial saturation by smaller numbers in direct proportion to the actual content of water vapor. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Relative humidity — is a measurement of the amount of water vapor that exists in a gaseous mixture of air and water. Estimating relative humidity The relative humidity of an air water vapor mixture can be estimated if both the temperature ( T ) and the dew point… …   Wikipedia

  • relative humidity — Humidity Hu*mid i*ty, n. [Cf. F. humidit[ e].] 1. Moisture; dampness; a moderate degree of wetness, which is perceptible to the eye or touch; used especially of the atmosphere, or of anything which has absorbed moisture from the atmosphere, as… …   The Collaborative International Dictionary of English

  • relative humidity — n the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature compare ABSOLUTE HUMIDITY * * * the percentage of moisture in the air as compared to the amount necessary to cause… …   Medical dictionary

  • relative humidity — n. the amount of moisture in the air as compared with the maximum amount that the air could contain at the same temperature, expressed as a percentage: cf. ABSOLUTE HUMIDITY …   English World dictionary

  • relative humidity —    The proportion of actual moisture in the air to the maximum amount possible at a specified temperature. It is stated as a percentage, with 100% being air fully saturated with water vapor. Control very important in art conservation because when …   Glossary of Art Terms

  • relative humidity — drėgnis statusas T sritis Standartizacija ir metrologija apibrėžtis Drėgmės ir ją sugėrusios medžiagos masių arba tūrių dalmuo, dažniausiai išreikštas procentais. atitikmenys: angl. relative humidity vok. relative Feuchte, f; relative… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • relative humidity — drėgnis statusas T sritis fizika atitikmenys: angl. relative humidity vok. relative Feuchte, f; relative Feuchtigkeit, f rus. относительная влажность, f pranc. humidité relative, f …   Fizikos terminų žodynas

  • relative humidity — santykinė drėgmė statusas T sritis fizika atitikmenys: angl. relative humidity vok. relative Feuchte, f; relative Feuchtigkeit, f rus. относительная влажность, f pranc. humidité relative, f …   Fizikos terminų žodynas

  • Relative Humidity —   A measure of the percent of moisture actually in the air compared with what would be in it if it were fully saturated at that temperature. When the air is fully saturated, its relative humidity is 100 percent …   Energy terms

  • relative humidity — santykinis medžiagos drėgnis statusas Aprobuotas sritis žemės ūkio inžinerinė plėtra ir techninė pažanga apibrėžtis Drėgmės ir drėgnos medžiagos, kurioje ji yra, masių santykis, reiškiamas procentais arba vieneto dalimis. atitikmenys: angl.… …   Lithuanian dictionary (lietuvių žodynas)

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