What is the unit of heat according to the Frensc standard; the amount of heat requires to raise the temperature of one kilogram (sometimes, one gram) of water one degree centigrade, or from 0Foot pound called?

calorie — The unit of heat according to the Frensc standard; the amount of heat requires to raise the temperature of one kilogram (sometimes, one gram) of water one degree centigrade, or from 0Foot pound. (Webster's 1913.)