crustal
adjUK /ˈkɹʌstəl/
Etymology From crust + -al.
1
Of, pertaining to, or forming a crust, especially the crust of the Earth or other planet.
- The hope was to lower a drill through over 4,000 metres of Pacific Ocean water off the coast of Mexico and drill some 5,000 metres through relatively thin crustal rock.2003, Bill Bryson, A Short History of Nearly Everything, BCA, page 189:
- Derived terms
- intracrustal, noncrustal, subcrustal