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

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 The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. by Belcher, Edward, Sir

For the purpose of making known the changes in the moisture of the atmosphere, an instrument has been invented called a "wet-bulb" thermometer.

From St. Nicholas Magazine for Boys and Girls, Vol. 5, July 1878, No. 9 by Dodge, Mary Mapes

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

From Autobiography of Sir George Biddell Airy by Airy, George Biddell

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 A Treatise on Meteorological Instruments Explanatory of Their Scientific Principles, Method of Construction, and Practical Utility by Negretti, Henry

The wet-bulb thermometer, although typical, is actually a later instrument.

From The Introduction of Self-Registering Meteorological Instruments by Multhauf, Robert P.