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measure of humidity click to hear : measure of humidity

Humidity refers to the amount of water vapor in the air.
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See measure of humidity in : french | spanish
hygrograph psychrometer

hygrograph click to hear : hygrograph

Instrument that registers variations in the moisture content of the air by measuring the deformation of an object that is affected by humidity.

psychrometer click to hear : psychrometer

Instrument comprised of wet and dry thermometers that register air humidity.