The term "kilogram calorie" is commonly used to describe the amount of energy required to raise the temperature of one kilogram of water by one degree Celsius. However, there are several other terms that can be used to describe this unit of measurement. One alternative term is "food calorie," which is equivalent to one kilogram calorie. Another synonym is "Calorie," which is written with a capital "C" to distinguish it from the lower-case "calorie" used in scientific contexts. Finally, some people use the term "kcal" to represent one kilogram calorie, although this abbreviation is less common than others.