ground plane
noun
(in perspective drawing) the theoretical horizontal plane receding from the picture plane to the horizon, beginning at the level of the base line.
Electricity.
a ground plate or an underground mesh of radial wires connected to a vertical antenna (ground plane antenna) that is grounded in order to provide suitable radiation characteristics.
Origin of ground plane
First recorded in 1825–35
Words nearby ground plane
ground owl,
ground pea,
ground pine,
ground pink,
ground plan,
ground plane,
ground plate,
ground plum,
ground provisions,
ground rent,
ground robin