biopolymer

1. (biochemistry) Any macromolecule of a living organism that is formed from the polymerization of smaller entities; a polymer that occurs in a living organism or results from life.Examples: "There are three main classes of biopolymers: polynucleotides (such as RNA and DNA), polypeptides (such as collagen and actin), and polysaccharides (such as cellulose and starch)."; "Products based on durable biopolymers have begun appearing in the marketplace."; "CJ Biomaterials was the first company in the world to produce amorphous PHA, it says, which is a softer, rubberier version of PHA that offers fundamentally different performance characteristics than crystalline or semi-crystalline forms of the biopolymer."