#wet-bulb_thermometer  a thermometer with a bulb that is covered with moist muslin; used in a psychrometer to measure humidity
  exclusion:  dry-bulb_thermometer
  supertype:  thermometer  measuring instrument for measuring temperature
  part of:  psychrometer  a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air

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