papaverine Syllabification: (pa·pav·er·ine)Pronunciation: /pəˈpavəˌrēn, -rin/Definition of papaverine noun Chemistry a compound present in opium used medicinally to alleviate muscle spasms and asthma. An alkaloid; chemical formula: C20H21NO4 Origin: mid 19th century: from Latin papaver 'poppy' + -ine4papaverine in other Oxford dictionaries Definition of papaverine in the British & World English dictionary
