CALORIE

also calory noun (plural -ries) see: lee Date: 1866 1. the amount of heat required at a pressure of one atmosphere to raise the temperature of one gram of water one degree Celsius that is equal to about 4.19 joules, the amount of heat required to raise the temperature of one kilogram of water one degree Celsius ; 1000 gram ~s or 3.968 Btu, 2. a unit equivalent to the large ~ expressing heat-producing or energy-producing value in food when oxidized in the body, an amount of food having an energy-producing value of one large ~