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noun, plural: hygrometers

Any of the various meteorologic instruments used for measuring the relative humidity of the atmosphere


The simplest form of hygrometer is a psychrometer, especially the wet- and dry-bulb psychrometer.

Hygrometers are used to determine the moisture content of the atmosphere. Thus, they are essentially used by meteorologists in predicting rainfall and other weather conditions.

Word origin: Greek hugros (wet, moist) + Greek metron (measure)

See also: