| Answer | Crossword Clue |
|---|---|
| ozonous | pertaining to ozone (a form of oxygen) |
| ozones | OZONE, a form of oxygen |
| oxidic | pertaining to oxide (a compound of oxygen) |
| hypoxic | pertaining to hypoxia (a deficiency of oxygen in body tissue) |
| oxygenic | pertaining to oxygen (a gaseous element) |
| ozonise | (of oxygen) to become converted into ozone |
