Found 2 items, similar to asthenosphere.
English → English (WordNet) Definition: asthenosphere asthenosphere n : the lower layer of the crust
English → English (gcide) Definition: asthenosphere asthenosphere \asthenosphere\ n. 1. the lower layer of the earth's crust, below the lithosphere. It is estimated as from fifty to several hundred miles thick. It is less rigid than the lithosphere, but still rigid enough to transmit some transverse seismic waves. --[RHUD] [WordNet 1.5 +PJC]