- An example of a calorie is five calories are needed to bring a kilogram of water up one degree Celsius.
- An example of a calorie is that there are 70 calories in an egg.
The definition of a calorie is a measure of energy in food, specifically the measure of heat needed to raise a kilogram or a gram of water by one degree Celsius.
- the amount of heat needed to raise the temperature of one gram of water one degree celsius; gram calorie; small calorie
- the amount of heat needed to raise the temperature of one kilogram of water one degree celsius; great calorie; kilocalorie; 1,000 calories; large calorie
- a unit equal to the large calorie, used for measuring the energy produced by food when oxidized in the body
- an amount of food able to produce one large calorie of energy
Origin of calorieFrench ; from Classical Latin calor, heat; akin to calere, to be warm ; from Indo-European base an unverified form kel-, warm from source Old English hl?owe, warm
- Abbr. cal Any of several approximately equal units of heat, each measured as the quantity of heat required to raise the temperature of 1 gram of water by 1°C at 1 atmosphere pressure. Also called gram calorie, small calorie.
- Abbr. cal The unit of heat equal to 1/100 the quantity of heat required to raise the temperature of 1 gram of water from 0 to 100°C at 1 atmosphere pressure. Also called mean calorie.
- a. Abbr. Cal The unit of heat equal to the amount of heat required to raise the temperature of 1 kilogram of water by 1°C at 1 atmosphere pressure. Also called kilocalorie, kilogram calorie, large calorie.b. A unit of energy-producing potential equal to this amount of heat that is contained in food and released upon oxidation by the body. Also called nutritionist's calorie.
Origin of calorieFrench, from Latin calor, heat; see caloric.
- Most scientific studies are now carried out using the joule (an SI unit).
- In nutritional contexts the term calorie refers to the kilogram calorie and the term kilocalorie refers to 1000 gram calories. Thus the two terms are equivalent.
- European legislation now requires foods to be labelled with the term kilocalorie.
From French calorie.