macromolecules
nounUK /ˌmækrəˈmɒlɪkjuːlz/
US /ˌmækroʊˈmɑːlɪkjuːlz/
Macromolecules are very big molecules, like the building blocks that make up living things.
Proteins and DNA are macromolecules found in every living cell.
RELATED WORDS
OTHER MEANINGS
2. Large molecules made by joining many small units together, studied in chemistry.
Starch is a macromolecule built from many sugar units.
3. The big molecules in food, such as proteins, fats, and carbohydrates.
Your body breaks down food macromolecules into smaller pieces.
4. Long-chain molecules used to make plastics and other materials.
Plastic is made of synthetic macromolecules.