psychrometer
noun
psy·chrom·e·ter
sī-ˈkrä-mə-tər 
: a hygrometer consisting essentially of two similar thermometers with the bulb of one being kept wet so that the cooling that results from evaporation makes it register a lower temperature than the dry one and with the difference between the readings constituting a measure of the dryness of the atmosphere
Examples of psychrometer in a Sentence
Recent Examples on the Web
Bundled up from head to toe, George had to venture out in some of the most extreme conditions ever recorded holding a sling psychrometer in her hand, which is the technique the observatory has used to measure weather conditions since 1932.
—
Jennifer Gray, CNN, 6 Feb. 2023
More recently, a device called a sling psychrometer can be used to calculate the wet bulb globe temperature.
—Tori B. Powell, CBS News, 12 Aug. 2022
During Friday’s practice at Kentucky Country Day, student managers measured the field’s heat index every 15 minutes using a psychrometer.
—Dominique Yates, The Courier-Journal, 19 July 2019
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Jennifer Gray, CNN, 6 Feb. 2023
More recently, a device called a sling psychrometer can be used to calculate the wet bulb globe temperature.
—Tori B. Powell, CBS News, 12 Aug. 2022
During Friday’s practice at Kentucky Country Day, student managers measured the field’s heat index every 15 minutes using a psychrometer.
—Dominique Yates, The Courier-Journal, 19 July 2019
Cite this Entry
“Psychrometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychrometer. Accessed 31 Oct. 2025.
Copy CitationKids Definition
psychrometer
noun
psy·chrom·e·ter
sī-ˈkräm-ət-ər
: an instrument for measuring water vapor
Medical Definition
psychrometer
noun
psy·chrom·e·ter
sī-ˈkräm-ət-ər
: a hygrometer consisting essentially of two similar thermometers with the bulb of one being kept wet so that the cooling that results from evaporation makes it register a lower temperature than the dry one and with the difference between the readings constituting a measure of the dryness of the atmosphere
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