Invalid English in the Oxford English Dictionary here http://oxforddictionaries.com/definition/calorie noun (plural calories) either of two units of heat energy:. (also small calorie)(abbreviation: cal)the energy needed to raise the temperature of 1 gram of water through 1°C (now usually defined as 4.1868 joules). (also large calorie)(abbreviation: Cal)the energy needed to raise the temperature of 1 kilogram …

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