- a unit of heat, equal to 4.1868 joules (International Table calorie): formerly defined as the quantity of heat required to raise the temperature of 1 gram of water by 1°C under standard conditions. It has now largely been replaced by the joule for scientific purposes
Also called: small calorie
WordReference Random House Learner's Dictionary of American English © 2016
- Also called gram calorie, small calorie. an amount of heat exactly equal to 4.1840 joules. Abbr.: cal
- (usually cap.) kilocalorie. Abbr.: Cal
- a unit equal to the kilocalorie, used to express the heat output of an organism and the fuel or energy value of food.
- a quantity of food capable of producing such an amount of energy.
- Latin calor heat) + -ie -y3
- French, equivalent. to calor- (