wet-bulb thermometer

American  

[wet-buhlb] / ˈwɛtˌbʌlb /

noun

1. a thermometer having a bulb that is kept moistened when humidity determinations are being made with a psychrometer.

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wet-bulb thermometer British  

noun

1. a thermometer the bulb of which is covered by a moist muslin bag, used together with a dry-bulb thermometer to measure humidity

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Etymology

Origin of wet-bulb thermometer

First recorded in 1840–50

Example Sentences

Researchers also use a device called a "wet-bulb thermometer" to measure the impact of this humidity.

From BBC

Self-Registering Hygrometer.—A maximum thermometer and a minimum thermometer, each fitted up as a wet-bulb thermometer, record the highest and lowest temperature of evaporation during the interval of observation.

From Project Gutenberg

The readings of this instrument, when compared with those of a wet-bulb thermometer, indicate the amount of moisture in the air, and thence the probability of rain.

From Project Gutenberg

The similar reductions for the wet-bulb thermometer are rapidly approaching completion.

From Project Gutenberg