Definition/Meaning of overburden

• English - Verb: overburden ( third-person singular simple present overburdens , present participle overburdening , simple past and past participle overburdened ) To overload or overtax
• English - Noun: overburden ( plural overburdens ) ( geology ) The rock and subsoil that lies above a mineral deposit such as a coal seam . 2004 , Richard Fortey, The Earth , Folio Society 2011, p . 163: Such rocks have been changed by baking in a terrestrial pressure-cooker. Then they have been disinterred: kilometres of overburden must have been removed . ( archaeology ) A sterile stratum that lies above the…
• English - Etymology: From over- +‎ burden .
• English - References: Wikipedia