Princeton's WordNet(4.60 / 5 votes)Rate this definition: 1  operation(noun) the state of being in effect or being operative. 2  operation(noun) a business especially one run on a large scale. 3  operation(noun) a planned activity involving many people performing various actions.
Tomatoes are a nutrient-dense food, meaning they are jam-packed with nutrients, but don't have a lot of calories. Lipids, carbs and protein are the three types of macronutrients your body breaks down for energy. The primary macronutrient in tomatoes is carbohydrates, although they do have trace amounts of fat and protein.
carbohydrate. (any of a group of) substances containing carbon, hydrogen and oxygen, especially the sugars and starches found in food. Potatoes are full of carbohydrate.n. 1. (Elements & Compounds) any of a large group of organic compounds, including sugars, such as sucrose, and polysaccharides, such as cellulose, glycogen, and starch, that contain carbon, hydrogen, and oxygen, with the general formula C m (H2O) n: an important source of food and energy for animals.Informal term: carb.arbohydrate. (any of a group of) substances containing carbon, hydrogen and oxygen, especially the sugars and starches found in food. Potatoes are full of carbohydrate.