Plain English Meaning

A navigation method that lets the pilot create a waypoint anywhere within range of a VOR/DME station and fly straight to it, instead of having to fly only directly to or from the station itself.

Full Definition

A form of area navigation that uses signals from a VOR station (which provides bearing) combined with a co-located DME station (which provides distance) to let the aircraft navigate directly between any two points within reception range, rather than being restricted to flying directly to or from the ground station. The aircraft's RNAV computer uses the VOR bearing and DME distance to calculate the position of a pilot-defined waypoint and then provides to that waypoint.