A nanite, first off, is a microscopic machine which can target cells in a body. This means they can destroy someone from the inside OR regenorate a wound.

A Nanite dart, however, is a dart which contains thousands of nanites, this can be fired at someone and inject nanites to cure or kill the target.

Why this is important[1]EditEdit

This is important because The Blue Veyron can fire thousands of millions of nanites over a city for them to cure a virus, or target important beings. Or it can fire a dart at a ship, then the nanites can destroy it's electroncs altogether.