Curcumin/ˈkɜː(ɹ)kjəmɪn/nounA polyphenol (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione; a major constituent of the spice turmeric.Synonyms: circumin🔗 Explore synonyms & relationships🌍 See word origin & history