wet-bulb thermometer

from WordNet (r) 3.0 (2006)
wet-bulb thermometer
    n 1: a thermometer with a bulb that is covered with moist
         muslin; used in a psychrometer to measure humidity [ant:
         {dry-bulb thermometer}]
    
from The Collaborative International Dictionary of English v.0.48
Wet-bulb thermometer \Wet-bulb thermometer\ (Physics)
   That one of the two similar thermometers of a psychrometer
   the bulb of which is moistened; also, the entire instrument.
   [Webster 1913 Suppl.]
    

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