hygrometer

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hy·grom·e·ter / hīˈgrämitər/ • n. an instrument for measuring the humidity of the air or a gas. DERIVATIVES: hy·gro·met·ric / ˌhīgrəˈmetrik/ adj. hy·grom·e·try / -trē/ n.

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hygrometer An instrument that is used to measure atmospheric humidity. Types include the wet-bulb–dry-bulb, dew-point, and hair hygrometers, and there is one type based on electrical resistance. See also psychrometer.

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hygrometer Instrument for measuring atmospheric humidity. Types include the wet-bulb—dry-bulb, dew-point, and hair hygrometers, and there is one type based on electrical resistance. See also PSYCHROMETER.

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hygrometer Instrument used to measure the humidity of the atmosphere. One type, the psychrometer, compares the wet and dry bulb temperatures of the air; other types measure absorption or condensation of moisture from the air, or chemical or electrical changes caused by that moisture.

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hygrometer (hy-grom-i-ter) n. an instrument for measuring the relative humidity of the atmosphere, i.e. the ratio of the moisture in the air to the moisture it would contain if it were saturated at the same temperature and pressure.

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hygrometer An instrument that is used to measure atmospheric humidity.