macromoleculeˌmæk rəˈmɒl əˌkyul
macromolecule, supermolecule (noun)
any very large complex molecule; found only in plants and animals
A very large molecule, especially used in reference to large biological polymers (e.g. nucleic acids and proteins).
A macromolecule is a very large molecule commonly created by polymerization of smaller subunits. In biochemistry, the term is applied to the three conventional biopolymers, as well as non-polymeric molecules with large molecular mass such as lipids and macrocycles. The individual constituent molecules of macromolecules are called monomers.