potentially hazardous object en · NOUN
Meanings
- A near-Earth asteroid or comet with an orbit such that it has the potential to make close approaches to the Earth and is of a size large enough to cause significant regional damage in the event of impact.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| potentially hazardous objects | Number=Plur | lexicographic | |
| PHO | alternative, initialism | lexicographic |
Coordinates
near-Earth comet · near-Earth asteroid