Bread is a source of carbohydrates.
Sugar is an example of a carbohydrate.
Origin of carbohydratecarbo- + hydrate
- Any of a group of organic compounds, including sugars, starches, celluloses, and gums, that contain only carbon, hydrogen, and oxygen and that originate chiefly as products of photosynthesis. Carbohydrates serve as a major energy source for living things.
- A food, such as bread, rice, or potatoes, that is composed largely of these substances.
From their general formula Cn(H2O)n; they were once thought to be hydrates of carbon.