- an instrument for determining atmospheric humidity by the reading of two thermometers, the bulb of one being kept moist and ventilated.
Origin of psychrometer
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Examples from the Web for psychrometer
The psychrometer is seen inside the shelter on the right in Fig. 2.
The humidity of the air was observed both by August's psychrometer and Saussure's hygrometer.The Voyage of the Vega round Asia and Europe, Volume I and Volume II
The form of hygrometer most commonly met with at meteorological stations is called a psychrometer.Meteorology
Charles Fitzhugh Talman
To overcome this difficulty another form of psychrometer has been devised.
Twelve ordinary standard (psychrometer-) thermometers, divided to fifths of a degree (Centigrade).The South Pole, Volumes 1 and 2
- a type of hygrometer consisting of two thermometers, one of which has a dry bulb and the other a bulb that is kept moist and ventilated. The difference between the readings of the thermometers gives an indication of atmospheric humidityAlso called: wet-and-dry-bulb thermometer
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
Word Origin and History for psychrometer
"instrument to measure moisture in the atmosphere," 1749, from Latinized form of Greek psykhros "cold" + -meter.
Online Etymology Dictionary, © 2010 Douglas Harper
- An instrument that uses the difference in readings between thermometers specialized to measure the moisture content or relative humidity of air.
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- See under hygrometer.
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