CALORIE
a unit of energy equivalent to the heat energy needed to raise the temperature of 1 gram of water by 1 °c (now often defined as equal to 4.1868 joules).
a unit of energy, often used to express the nutritional value of foods, equivalent to the heat energy needed to raise the temperature of 1 kilogram of water by 1 °c, and equal to one thousand small calories; a kilocalorie.
a unit of energy, often used to express the nutritional value of foods, equivalent to the heat energy needed to raise the temperature of 1 kilogram of water by 1 °c, and equal to one thousand small calories; a kilocalorie.