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.
A carbohydrate is a biological molecule consisting of carbon, hydrogen, and oxygen atoms. In food science, carbohydrate means any food rich in starch (such as cereals, bread, and pasta).he ratio of H to O is that of water, but that does not mean there are actually water molecules in them. Carbohydrates are polyhydroxy aldehydes, polyhydroxy ketones or compounds that can be hydrolyzed to them. Examples of carbohydrates are: glucose, sucrose, lactose, starch, cellulose.