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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Calorie \Cal"o*rie\, n. [F., fr. L. calor heat.] (Physics)
      The unit of heat according to the French standard; the amount
      of heat required to raise the temperature of one kilogram
      (sometimes, one gram) of water one degree centigrade, or from
      0[deg] to 1[deg]. Compare the English standard unit, Foot
    pound.
      [1913 Webster]