crustal

definition: 
Adjective (crust)
sentence: 
Throughout the world, most of the earthquake activities are confined to plate margin associated with crustal deformation.
Glaciation and crustal activity have given the island its unique shape.
At the bottom of the Pacific Ocean is a daisy chain of volcanoes, faults and crustal fractures.
difficulty: 
medium
toefl frequency: 
2
toefl classification: 
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