from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An automatic hygrometer that records variations in atmospheric humidity.

from The Century Dictionary.

  • noun An instrument which registers automatically the variations in the moisture of the atmosphere.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Physics) An instrument for recording automatically the variations of the humidity of the atmosphere.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any of several forms of automated hygrometer that record humidity.


from Wiktionary, Creative Commons Attribution/Share-Alike License

hygro- + -graph


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