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[sahy-krom-i-ter] /saɪˈkrɒm ɪ tər/
an instrument for determining atmospheric humidity by the reading of two thermometers, the bulb of one being kept moist and ventilated.
Origin of psychrometer
1720-30; psychro- + -meter
Related forms
[sahy-kruh-me-trik] /ˌsaɪ krəˈmɛ trɪk/ (Show IPA),
psychrometrical, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for psychrometer
  • Technically, the ambient temperature registered by the dry-bulb thermometer of a psychrometer.
  • Explain that the psychrometer hangs from a chain attached to a metal bar which the students will hold tightly at all times.
  • The room shall be large enough to permit the use of a manually operated sling psychrometer.
  • The instrument used to measure humidity is called a psychrometer.
  • Take a reading of the scale and a relative humidity reading with a psychrometer.
  • The cabinet has a door and has room to store the psychrometer and weather book by which the towerman determines the fire danger.
  • Air temperature and humidity readings are usually taken with a sling psychrometer.
  • The so-called integrated sensors currently include the barometer and psychrometer.
  • Remember, the fabric sock on the wet bulb of the psychrometer must be moistened prior to use, preferably with distilled water.
  • Relative humidity and air temperature is recorded with a digital sling psychrometer.
British Dictionary definitions for psychrometer


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 humidity Also 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
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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
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psychrometer in Medicine

psychrometer psy·chrom·e·ter (sī-krŏm'ĭ-tər)
An instrument that uses the difference in readings between thermometers specialized to measure the moisture content or relative humidity of air.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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psychrometer in Science
See under hygrometer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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