| Rating | Solver | Clue |
|---|---|---|
| SALTS | Sodium compounds | |
| SODIO- | A combining form (also used adjectively) denoting the presence of sodium or one of its compounds. | |
| ZIRCO- | A combining form (also used adjectively) designating zirconium as an element of certain double compounds; zircono-; as in zircofluoric acid, sodium zircofluoride. | |
| METALORGANIC | Pertaining to, or denoting, any one of a series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc. |