| Clue | Source | Date |
|---|---|---|
| Some acids, informally | New York Times | 25 Dec 2022 |
| Some acids | New York Times | 30 Oct 2016 |
| Some acids | ||
| Essential acids | ||
| Essential acids | ||
| Essential acids | ||
| Some essential acids, in health-food lingo | ||
| Important acids | ||
| Some acids | ||
| Some essential acids, in health-food lingo | ||
| Certain acids | ||
| Acid prefixes | ||
| Combining forms in chemistry. | ||
| Some acids |