water thermometer

1 definition found

water thermometer - Collaborative International Dictionary of English v.0.48 :

  Water thermometer \Wa"ter ther*mom"e*ter\ (Physics)
     A thermometer filled with water instead of mercury, for
     ascertaining the precise temperature at which water attains
     its maximum density. This is about 39[deg] Fahr., or 4[deg]
     Centigrade; and from that point down to 32[deg] Fahr., or
     0[deg] Centigrade, or the freezing point, it expands.
     [1913 Webster]