geosphere(n = noun.object) lithosphere - the solid part of the earth consisting of the crust and outer mantle;
is a kind of layer
is a part of earth, globe, world
has parts: crust, earth's crust, mantle, earth's surface, surface

geosphere, n.
1 the solid surface of the earth.
2 any of the almost spherical concentric regions of the earth and its atmosphere.