groundspeed

or ground speed

[ ground-speed ]
/ ˈgraʊndˌspid /

noun

the speed of an aircraft with reference to the ground.

Origin of groundspeed

First recorded in 1915–20; ground1 + speed

Words nearby groundspeed

groundsheet, groundside, groundsill, groundskeeper, groundsman, groundspeed, groundswell, groundwater, groundwood, groundwood pulp, groundwork

British Dictionary definitions for groundspeed

groundspeed
/ (ˈɡraʊndˌspiːd) /

noun

the speed of an aircraft relative to the ground Compare airspeed