Pronunciation: [kɹˈʌstə͡l] (IPA) 
The word "crustal" (/ˈkrʌstəl/) refers to anything related to the Earth's crust. The spelling of this word can be explained through its phonetic transcription. The first syllable is pronounced as "krʌs" with the "u" sound like that in "hut" and the "s" sound as in "sun". The second syllable is pronounced as "təl" with the "ə" sound like in "sofa" and the "l" sound as in "full". Together, the word is pronounced as "KRUST-uhl".
Crustal is an adjective that refers to the Earth's crust, which is the outermost layer of the planet. The Earth's crust is a solid and relatively thin layer that covers the surface of the Earth, ranging in thickness from about 5 to 70 kilometers.
In geology, the adjective crustal is used to describe processes, events, or features that involve or relate to the Earth's crust. It encompasses the study of the formation, composition, and dynamics of the crust. This term is particularly relevant in the field of plate tectonics, which investigates the movement and interactions of the Earth's crustal plates.
Crustal processes, such as volcanic eruptions, earthquakes, and the formation of mountain ranges, are key components of the Earth's geologic activity. By understanding and studying these processes, scientists can gain insights into the Earth's history, the distribution of natural resources, and even the potential risks associated with seismic activity in certain regions.
Furthermore, the study of crustal rocks and their composition can provide valuable information about the geological history of an area and help in the identification and exploration of mineral deposits. Overall, the term crustal is used to describe anything related to the Earth's crust and the geological processes that shape it.
Relating to a crust, specifically to the crusta, basis pedunculi.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word crustal is derived from the noun crust, which comes from Middle English cruste and Old French croste. Both of these origins trace back to Latin crusta, meaning hard outer covering or shell. In the context of crustal, the suffix -al is added to crust to form an adjective, denoting relating to the crust.
