wet-bulb thermometer

wet-bulb thermometer

[wet-buhlb]
noun
a thermometer having a bulb that is kept moistened when humidity determinations are being made with a psychrometer.


Origin:
1840–50

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
wet-bulb thermometer
 
n
a thermometer the bulb of which is covered by a moist muslin bag, used together with a dry-bulb thermometer to measure humidity

Collins English Dictionary - Complete & Unabridged 10th Edition
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