| Clue | Source | Date |
|---|---|---|
| An old name for nitrogen | The Telegraph General Knowledge | 15 Jun 2020 |
| Old name for nitrogen | The Telegraph General Knowledge | 08 Jan 2017 |
| Old term for nitrogen | ||
| Nitrogen | ||
| Old term for nitrogen | ||
| Nitrogen, once | ||
| Nitrogen, formerly | ||
| Nitrogen name | ||
| Gas as before about variable earnings for rep matching plan | ||
| Nitrogen | ||
| Nitrogen, once | ||
| Nitrogen, in chemistry | ||
| Nitrogen. | ||
| Lavoisier's name for nitrogen. |