barometer

(noun)

an instrument for measuring atmospheric pressure

Related Terms

Examples of barometer in the following topics:

  • SI Units of Pressure

    • Torr and millimeters of mercury (mm Hg, defined as a one millimeter difference in the height of a mercury barometer at 0°C) are nearly equivalent.
    • manometer barometer mmhg atm kpa units kinetic molecular theory

  • Mercury

    • Mercury is used in thermometers, barometers, manometers, float valves, mercury switches, and other devices.

  • Capillary Action

    • This may be seen between mercury and glass in barometers and thermometers.

  • Temperature

    • Thermoscopes also served as barometers (which measure pressure).