Hygrometer

//haɪˈɡɹɒmɪtə(ɹ)// noun

Definitions

Noun
  1. 1
    An instrument that measures the humidity of the air or other gases, especially the relative humidity.
  2. 2
    measuring instrument for measuring the relative humidity of the atmosphere wordnet

Etymology

From French hygromètre, from hygro- + -meter.

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