a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams:five coats of polyurethane [count noun]:polyurethanes serve a variety of uses
verb
[with object] (usually as adjective polyurethaned)
coat with polyurethane paint or varnish:the sanded and polyurethaned floorboards
polyurethane in other Oxford dictionaries
Definition of polyurethane in the US English dictionary
