n. 25B6; noun
a crust of ice : COVERING, layer, coating, cover, coat, sheet, thickness, film, skin, topping; incrustation, scab.
the earth's crust. : See list.
(informal) I'm just trying to earn an honest crust : LIVING, livelihood, income, daily bread, means of subsistence; informal bread and butter.
Layers of the Earth's Crust
asthenosphere oceanic crust
continental crust sial
lithosphere transition zone
lower mantle upper mantle
Mohorovi 010D; i 0107; discontinuity