n. (Chem.) Cerium oxide, CeO2, a white infusible substance constituting about one per cent of the material of the common incandescent mantle. [ Webster 1913 Suppl. ]
a. Same as Cerrial. [ Obs. ] Chaucer. [ 1913 Webster ]
{ } a. (Zool.) Of or pertaining to the rhinoceros; resembling the rhinoceros, or his horn. Tatler. [ 1913 Webster ]