1863–72 Watts Dict. Chem. I. 834Ceroso-ceric Oxide..may be regarded as a compound of cerous and ceric oxide.
1873 ― Fownes'Chem. 380The ceroso-ceric compounds, of intermediate composition.
1879 ― Dict. Chem. , 3rd Supp. 421The brown-red hexagonal salt remains also a ceroso-ceric salt according to the new atomic weight. [ sulphur]