| Term: | Preactivation |
| Definition: |
The ability of an ice nucleating particle to act at a higher temperature or a lower supersaturation once it has activated an ice crystal that has subsequently evaporated, provided that critical conditions of temperature and undersaturation are not exceeded. AMSglossary
GCW |
| Term: | Preactivation |
| Definition: | The ability of an ice nucleating particle to act at a higher temperature or a lower supersaturation once it has activated an ice crystal that has subsequently evaporated, provided that critical conditions of temperature and undersaturation are not exceeded. |