copolymer

Also contains definitions of: bipolymer, quaterpolymer, terpolymer

A polymer derived from more than one species of monomer.
Note:
Copolymers that are obtained by copolymerization of two monomer species are sometimes termed bipolymers, those obtained from three monomers terpolymers, those obtained from four monomers quaterpolymers, etc.
Source:
PAC, 1996, 68, 2287 (Glossary of basic terms in polymer science (IUPAC Recommendations 1996)) on page 2300