Plain English Meaning
A single ground station that tells the aircraft two things at once: which direction it lies in from the station, and how far away it is.
Full Definition
A ground-based navigation facility that combines a VHF Omnidirectional Range (VOR) transmitter, which provides bearing (radial) information from the station, with Distance Measuring Equipment (DME), which provides slant-range distance from the station. Together they allow a suitably equipped aircraft to determine both its direction from and distance to the same fixed ground point.
Context Anchor
Seen when using radio navigation, instrument , and that refer to a named facility.