hygrometer
any instrument for measuring the water-vapor content of the atmosphere.
Origin of hygrometer
1Words Nearby hygrometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use hygrometer in a sentence
The thread thus forms an excellent hygrometer, which is constantly under the eye of the observer.
Photographs of Nebul and Clusters | James Edward KeelerO for a big double-barreled hygrometer,To measure this moisture that rolls from my brow!
The Book of Humorous Verse | VariousThe two thus combined making a hygrometer: for which some kinds of hair, grass, or seaweed may be a make-shift.
Barometer and Weather Guide | Robert FitzroyThe dew-point determination is, however, not as convenient to make as the wet-and-dry-bulb hygrometer readings.
Seasoning of Wood | Joseph B. WagnerTherefore, the hygrometer (convex) curves are ordinarily more useful in determining relative humidities.
Seasoning of Wood | Joseph B. Wagner
British Dictionary definitions for hygrometer
/ (haɪˈɡrɒmɪtə) /
any of various instruments for measuring humidity
Derived forms of hygrometer
- hygrometric (ˌhaɪɡrəˈmɛtrɪk), adjective
- hygrometrically, adverb
- hygrometry, noun
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
Scientific definitions for hygrometer
[ hī-grŏm′ĭ-tər ]
Any of several instruments that measure humidity. The most common type of hygrometer consists of two, side-by-side mercury or electronic thermometers, one of which has a dry bulb, and one of which has a bulb wrapped with a wet cotton or linen wick. As water evaporates from the wet bulb, it absorbs heat from the thermometer, driving down its temperature reading. The difference in temperature between the two thermometers is then used to calculate the relative humidity. This type of hygrometer is also called a psychrometer. Other hygrometers make use of the temperatures at which dew forms and disappears to calculate the relative humidity. Older hygrometers used the length of a strand of hair, which stretches when it absorbs moisture, to measure relative humidity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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