(n) any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber, Syn. polyurethan
n. (Chem.) any polymer containing [ -NH.CO.O- ] linkages; such polymers are much used as the basis of light but rigid foams for packaging ( polyurethane foam) and for hard coatings, as on floors. [ PJC ]