#altimeter  an instrument that measures the height above ground; used in navigation
  supertype:  measuring_instrument__measuringinstrument__measuring_system__measuringsystem__measuring_device__measuringdevice  instrument that shows the extent or amount or quantity or degree of something
  subtype:  hypsometer  an altimeter that uses the boiling point of water to determine land elevation
  part:  aneroid_barometer__aneroidbarometer__aneroid  a barometer that measures pressure without using fluids

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