1. a unit of measurement for the energy content of food
Usage: commonly used in nutrition and dieting
2. a unit of heat energy equal to the amount needed to raise the temperature of one gram of water by one degree Celsius
Usage: scientific; also called small calorie or gram calorie

Examples

• This apple contains about 80 calories.
• She’s counting calories to lose weight.
• The nutrition label shows 250 calories per serving.
• He burned 300 calories during his workout.
• Low-calorie foods can help with weight management.
• The scientist measured the calorie content of the fuel.
• A large calorie equals 1,000 small calories.