potentially hazardous object (English, noun)
expansion: potentially hazardous object (plural potentially hazardous objects)
Senses:
topics: astronomy
natural-sciences
glosses: 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:
form: potentially hazardous objects
tags: plural
form: PHO
tags: alternative
initialism