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

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

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

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.

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