Hygrometer

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hygrometer \Hy*grom"e*ter\, n. [Gr. ? wet, moist + -meter: cf.
     F. hygrom[`e]tre.] (Physics)
     An instrument for measuring the degree of moisture of the
     atmosphere.
     [1913 Webster]
  


     {Daniell's hygrometer}, a form of hygrometer consisting of a
        bent glass tube terminating in two bulbs, the one covered
        with muslin, the other of black glass, and containing
        ether and a thermometer. Ether being poured on the muslin,
        the black ball, cooled by the evaporation of the ether
        within, is soon covered with dew; at this moment, the
        inclosed thermometer gives the dew-point, and this,
        compared with the reading of one in the air, determines
        the humidity. Hygrometric

From WordNet (r) 2.0 [wn]:

  hygrometer
       n : measuring instrument for measuring the relative humidity of
           the atmosphere

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  25 Moby Thesaurus words for "hygrometer":
     aerological instrument, aneroid barometer, aneroidograph,
     barograph, barometer, barometrograph, glass, hair hygrometer,
     humidor, hurricane-hunter aircraft, hygrodeik, hygrograph,
     hygroscope, hygrostat, hygrothermograph, psychrometer, radiosonde,
     recording barometer, sling psychrometer, vacuometer,
     weather balloon, weather instrument, weather satellite,
     weather vane, weatherglass