WordReference Random House Unabridged Dictionary of American English © 2025
potas′sium co•bal•ti•ni′trite 
(kō′bôl tə nī′trīt),USA pronunciation [Chem.]
            - a yellow, crystalline, slightly water-soluble powder, K3Co(NO2)6, used as a pigment in oil and watercolor paints, and for coloring surfaces of glass, porcelain, etc. Also called cobalt yellow.
 
- cobalt + -i- + nitrate
 
'potassium cobaltinitrite' also found in these entries (note: many are not synonyms or translations):