Ma'anar ƙamus na kalmar "lithosphere" ita ce:noun: tsayayyen harsashi na duniya, har da Duniya, wanda ya ƙunshi ɓawon burodi da kuma mafi girman ɓangaren alkyabbar. An raba lithosphere zuwa manyan faranti na tectonic da yawa waɗanda ke motsawa dangane da juna saboda motsin motsi na asthenosphere Semi-fluid, kuma shine inda galibin tsarin tafiyar da yanayin duniya, kamar girgizar ƙasa, volcanoes, da ginin dutse, ke faruwa. Lithosphere kuma wani yanki ne na saman duniya inda nahiyoyi da tekuna suke.