| Rating | Solver | Clue |
|---|---|---|
| NITRIC | Acid type | |
| ACETIC | Type of acid | |
| URIC | Type of acid | |
| QUINONE | ...oketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which qui... | |
| SAPONIN | ... also struthiin, quillaiin, senegin, polygalic acid, etc. By extension, any one of a group of related bodies of which saponin proper is the t... | |