noun
copolymer; interpolymer
Technical term in polymer chemistry for a polymer derived from more than one species of monomer.
この共重合体は、二種類のモノマーから合成される。
This copolymer is synthesized from two types of monomers.
重合体 (polymer) is a general term for a polymer, while 共重合体 specifically refers to a copolymer made from two or more different monomers.
Compound of 共 (co-, together) + 重合 (polymerization) + 体 (body, substance). The term is a direct calque from English 'copolymer'.