Added 9 October 2026 monomer /ˈmɒnəmə/ noun Categories: NatureRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about monomer at Wordnik → Where our words come from → A relatively small molecule which can be covalently bonded to other monomers to form a polymer or oligomer. Related Words: dimervinylvcmmerunitresiduemoleculeprecursorsubunitbrickelementbase Back to today's word