American English

Definition of incrustation noun from the Oxford Advanced American Dictionary

 

incrustation

 noun
noun
NAmE//ˌɪnkrʌˈsteɪʃn//
 
(also encrustation) [uncountable, countable]
 
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the process of forming a hard outer covering or layer; the covering or layer that is formed
See the Oxford Advanced Learner's Dictionary entry: incrustation