Berzelius, Jöns Jakob Syllabification: (Ber·ze·li·us, Jöns Jakob)Pronunciation: /bərˈzālēəs, -ˈzē-/Definition of Berzelius, Jöns Jakob (1779–1848), Swedish analytical chemist. He determined the atomic weights of many elements and discovered cerium, selenium, and thorium. Berzelius, Jöns Jakob in other Oxford dictionaries Definition of Berzelius, Jöns Jakob in the British & World English dictionary
