Adjacent Words

psychrometer definitions

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WordNet (r) 3.0 (2005)

n
1: a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air

Merriam Webster's

noun Etymology: International Scientific Vocabulary Date: circa 1741 a hygrometer consisting essentially of two similar thermometers with the bulb of one being kept wet so that the cooling that results from evaporation makes it register a lower temperature than the dry one and with the difference between the readings constituting a measure of the dryness of the atmosphere • psychrometric adjective • psychrometry noun

NOAA Weather Glossary

An instrument used for measuring the water vapor content ofthe atmosphere.  It consists of two thermometers, one of which is an ordinary glassthermometer, while the other has its bulb covered with a jacket of clean muslin which issaturated with distilled water prior to use.

Oxford Reference Dictionary

n. a thermometer consisting of a dry bulb and a wet bulb for measuring atmospheric humidity. Etymology: Gk psukhros cold + -METER

Webster's 1913 Dictionary

Psychrometer Psy*chrom"e*ter, n. [Gr. psychro`s cold + -meter: cf. F. psychrom[`e]tre.] An instrument for measuring the tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.