- any of the group of thermosetting resins derived by the polymerization of mixtures of coumarone and indene: used chiefly in the manufacture of paints, varnishes, and printing inks.
Origin of coumarone resin
First recorded in 1895–1900
Also called cou·ma·rone-in·dene res·in [koo-muh-rohn-in-deen] /ˈku məˌroʊnˈɪn din/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018