Plain English Meaning
A radio station on the ground that sends out navigation signals in every direction. Aircraft pick up these signals and use them to figure out which direction they are from the station.
Full Definition
The ground-based radio station that broadcasts VOR (Very High Frequency Omnidirectional Range) navigation signals on a frequency between 108.0 and 117.95 MHz. Each VOR transmitter sends out 360 distinct radial signals from a fixed surveyed location, allowing aircraft equipped with VOR receivers to determine their bearing to or from the station.
Context Anchor
Seen in instrument flying and navigation discussions, especially when using or checking a VOR station for course guidance.