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hair hygrometer

noun
1.
a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.
Origin of hair hygrometer
1875-1880
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for hair hygrometer
Historical Examples
  • "A hair hygrometer," he said to me, waving his wax-like hand over it.

    Lin McLean Owen Wister

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Difficulty index for hair hygrometer

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Word Value for hair

7
6
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