Minor calorie refers to a small unit of energy that is commonly used in food science, nutrition, and dietetics. There are several synonyms that can be used interchangeably with the term minor calorie, such as small calorie, gram calorie, or calorie. These synonyms refer to the same amount of energy required to raise the temperature of one gram of water by one degree Celsius. Other synonyms for minor calorie include thermal calorie and mean calorie. While these terms are not commonly used in everyday language, they are essential for understanding energy intake and metabolism in relation to food and nutrition.