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crustal

American

[kruhs-tl] / ˈkrʌs tl /

adjective

of or relating to a crust, as of the earth.

crustal British

/ ˈkrʌstəl /

adjective

of or relating to the earth's crust

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of crustal

1855–60; < Latin crūst ( a ) shell, crust + -al ¹

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers used computer simulations inspired by a geological process on Earth called crustal delamination.

From Science Daily • Jan. 23, 2026

However, its crustal abundance is nearly 100 times that of Ru, indicating that these new electrocatalytic materials can be synthesized in sufficiently large amounts to enable hydrogen mass-production using water electrolyzers.

From Science Daily • Mar. 2, 2024

The findings, recently published in Nature Astronomy, shed light on the ancient crust of Mars and its potential implications for understanding early crustal recycling on both Mars and Earth.

From Science Daily • Feb. 15, 2024

The majority of Ontario, Quebec, Manitoba, Saskatchewan, Northwest Territories and Nunavut is made up of Archean crustal fragments that are dominated by TTGs and their slightly younger and more evolved granite counterparts.

From Science Daily • Jan. 31, 2024

At first people called them "crustal blocks" or sometimes "paving stones."

From "A Short History of Nearly Everything" by Bill Bryson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023