American Heritage® Dictionary of the English Language, Fourth Edition
- n. See calorie.
- n. a non-SI unit of energy equal to 1,000 calories, used (now rare) in chemistry or physics; equal to 1 calorie or Calorie as used in nutrition. Symbol kcal.
- n. a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food
“In order to standardize and have a clear idea of the value of each of these sources of energy, the terms kilocalorie or the conventional ton are used.”
“A Calorie aka kilocalorie is simply a unit of food energy.”
“Most people, when referring to the energy content of food, use "calorie" instead of "kilocalorie" - which is the actual unit that food energy is measured in.”
“The kilocalorie is the unit of energy familiar to us from diet lists, and a mol is the unit that expresses the number of molecules.”
“SI prefixes are used with this name and symbol, so that the kilogram calorie is known as the "kilocalorie" and has the symbol kcal.”
“Metric prefixes are used with this name and symbol, so that the kilogram calorie is known as the "kilocalorie" and has the symbol kcal.”
“The more accurate name for these is kilo calories—each kilocalorie is a thousand actual calories.”
“In this book, we use the word “Calorie” with a capital C to designate a kilocalorie, and the word “calorie” in reference to energy in general.”
“Best of all, with our "human engines" burning a solid kilocalorie a day, our dietary choices were limitless.”
“The large calorie, or rather kilocalorie, is the amount of heat required at a pressure of one atmosphere to raise the temperature of one kilogram of water by 1 °C.”
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