| Rating | Solver | Clue |
|---|---|---|
| LYE | Corrosive substance | |
| OZONE | Corrosive substance | |
| ACID | Corrosive substance | |
| CAUSTICAL | Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing. | |
| CARBONIZE | To convert (an animal or vegetable substance) into a residue of carbon by the action of fire or some corrosive agent; to char. | |
| CORROSIVE | Eating away; having the power of gradually wearing, changing, or destroying the texture or substance of a body; as, the corrosive action of an acid. | |
| IRIDIUM | ...tinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osm... | |