Calorie - Definition

n 1: 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 [syn:
Calorie, kilogram calorie, kilocalorie, large
calorie, nutritionist's calorie]
2: unit of heat defined as the quantity of heat required to
raise the temperature of 1 gram of water by 1 degree
centigrade at atmospheric pressure [syn: calorie, gram
calorie, small calorie]