Plain English Meaning
Going around something instead of straight through it, then getting back on your planned path. In flying, this usually means flying around a thunderstorm or area of bad weather rather than through it.
Full Definition
A deviation from the originally planned or cleared route of flight, typically requested or directed to avoid hazardous weather, traffic, terrain, or restricted airspace, after which the aircraft rejoins its intended route.
Context Anchor
Seen during weather avoidance, especially when a pilot asks air traffic control for help routing around thunderstorms or other unsafe .