C3O1P3O1L1Y4M3E1R1I1Z10E1
30 points
COPOLYMERIZE is validvalid
to make a polymer from more than one type of monomer [v COPOLYMERIZED, COPOLYMERIZES, COPOLYMERIZING]
to make into a copolymer, also COPOLYMERISE [v COPOLYMERIZED, COPOLYMERIZING, COPOLYMERIZES]