DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   Moho
       n 1: 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]