(n.) Any one of two or more substances related to each other by polymerism; specifically, a substance produced from another substance by chemical polymerization.

acid acidity adhesive agent alkali alkalinity alloisomer anion antacid atom base biochemical cast plastic cation cellulose plastic chemical chemical element chromoisomer compound copolymer dimer element extruded plastic heavy chemicals high polymer homopolymer hydracid inorganic chemical ion isomer laminate macromolecule metamer molded plastic molding compounds molecule monomer neutralizer nonacid organic chemical oxyacid plastic protein plastic pseudoisomer radical reagent resin plastic sulfacid synthetic synthetic fabric synthetic rubber thermoplastic thermosetting plastic trimer