'Moho' definitions:

Definition of 'Moho'

(from WordNet)
noun
The boundary between the Earth's crust and the underlying mantle; "the Mohorovicic discontinuity averages 5 miles down under oceans and 20 miles down under continents" [syn: Mohorovicic discontinuity, Moho]

Definition of 'Moho'

From: GCIDE
  • Moho \Mo"ho\, n. [Native name.] (Zool.) A gallinule (Notornis Mantelli) formerly inhabiting New Zealand, but now supposed to be extinct. It was incapable of flight. See Notornis. [1913 Webster]

Definition of 'Moho'

From: GCIDE
  • Moho \Mo"ho\, n. [Short for Mohorovicic discontinuity, from Andrija Mohorovi[ccaron]i[cacute], a Yugoslavian geologist.] (Geol.) The boundary between the earth's crust and the semiliquid mantle beneath. It varies in depth from 3 miles beneath the surface at certain points in the ocean to over 25 miles under certain parts of continents. [PJC]