hair hygrometer

noun

a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.

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Nearby words

hair cell, hair disk, hair follicle, hair gel, hair grass, hair hygrometer, hair implant, hair lacquer, hair net, hair of the dog that bit you, hair papilla

Origin of hair hygrometer

First recorded in 1875–80

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019