#barometer  an instrument that measures atmospheric pressure
  supertype:  measuring_instrument__measuringinstrument__measuring_system__measuringsystem__measuring_device__measuringdevice  instrument that shows the extent or amount or quantity or degree of something
  subtype:  aneroid_barometer__aneroidbarometer__aneroid  a barometer that measures pressure without using fluids
  subtype:  barograph  a recording barometer; automatically records on paper the variations in atmospheric pressure
  subtype:  mercury_barometer__mercurybarometer  barometer that shows pressure by the height of a column of mercury
  subtype:  weatherglass  a simple barometer for indicating changes in atmospheric pressure

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