Breadcrumb Home > Dictionary Search Cite Meaning of polymerase Find definitions for: pol•y•mer•ase Pronunciation: (pol'u-mu-rās", -rāz"), [key] — n. Biochem. any of several enzymes that catalyze the formation of a long-chain molecule by linking smaller molecular units, as nucleotides with nucleic acids. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polymerase (Thesaurus) polymer polymeric Related Content Daily Word Quiz: cerebral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language