relative humidity
4
4.0
- noun
- /ˈrɛlətɪv hjuˈmɪdəti/
- Specialized
:
humedad relativa
- A relative humidity of 50% is often considered comfortable for indoor environments.
- relative humidity percent
- high relative humidity
- relative humidity of the air
So high, high relative humidity, that's where the problems start, right.
- So high, high relative humidity, that's where the problems start, right.
- Colder air can hold less humidity than warmer air, so the relative humidity goes up.
- Now the relative humidity also tells us something about the sort of how far you are from that phase transition point.
Examples
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Meteorological data such as air temperature and relative humidity were provided by the Korea Meteorological Administration.
Academic text (2008) -
Increases in either temperature or relative humidity can dramatically shorten the life of acetate microfilm by bringing on vinegar syndrome.
Academic text (2013) -
None of the facilities had relative humidity below 30 percent.
Academic text (2002) -
The distribution of the relative humidity across facilities and activities is shown in Figure 2.
Academic text (2002) -
Measurement and calculations are performed to determine temperature, relative humidity, and wind speed and direction.
Blog text (5) -
The system is designed to provide accurate relative humidity (+/- 2 percent).
Academic text (1994) -
Colder air can hold less humidity than warmer air, so the relative humidity goes up.
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The motor runs continuously, even as the relative humidity reaches 98 percent during the warm-temperature cycle.
Academic text (1995) -
Acetate microfilm is best stored in constant temperatures, ideally around 35 degrees Fahrenheit, with relative humidity below 30 percent.
Academic text (2013) -
All animals were reared and tested at 25° and 50% relative humidity on a 12-hr light/12-hr dark cycle.
Academic text (2017)
Synonyms
82
2.7
The amount of water in the air that makes it feel wet or sticky
How Humid
- Specialized
4
4.0
82
2.7
Surface Forms
Morphology
The phrase is compositionally built from 'relative' (in relation to something) and 'humidity' (amount of water vapor), so learners can infer it signals a comparative measure of humidity. However, understanding that it specifically means the percentage of the maximum water vapor the air can hold at the same temperature requires domain knowledge (saturation/temperature), so the meaning is not fully predictable from the words alone.
Etymology
The term relative humidity comes from the image of the air as a sponge: humidity is the water in the air and relative shows it is 'compared to' the most water the air could hold at that temperature. So, relative humidity tells you 'how full the air is with water', usually shown as a percentage.