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.
Technically, all vegetables contain carbohydrates and can considered carbs.. However, some vegetables have more carbohydrates in them than others. If you're conscious of your carbohydrate intake, be aware of not only how many carbs your vegetables contain, but also what kind of carbohydrates they provide.