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relative humidity
noun
: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature
Examples of relative humidity in a Sentence
Recent Examples on the Web
In addition to the museum’s emergency staffing, preparations for Hurricane Milton included a full generator for its chiller plant, a type of centralized cooling system for buildings that would help maintain industry standards for temperature control and relative humidity.
—Karen K. Ho, ARTnews.com, 10 Oct. 2024
The heat index is calculated with a complex equation that factors in relative humidity and air temperature.
—Andrea Thompson, Scientific American, 1 Aug. 2024
State officials said vegetation is critically dry in San Bernardino County and temperatures reached more than 100 degrees on Saturday, with relative humidity ideal for the fire to spread.
—Patrick Smith, NBC News, 10 Sep. 2024
Arcis maintains a temperature of 70° Fahrenheit and a relative humidity of 50%, while the air in many parts of the building is refreshed three to six times per hour.
—The Editors Of Artnews, ARTnews.com, 10 Sep. 2024
See all Example Sentences for relative humidity
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'relative humidity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1819, in the meaning defined above
Time Traveler
The first known use of relative humidity was
in 1819
Dictionary Entries Near relative humidity
Cite this Entry
“Relative humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/relative%20humidity. Accessed 31 Oct. 2024.
Kids Definition
relative humidity
noun
: the amount of water vapor actually present in the air compared to the greatest amount possible at the same temperature
Medical Definition
relative humidity
noun
: 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
More from Merriam-Webster on relative humidity
Britannica.com: Encyclopedia article about relative humidity
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