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corrugation

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noun cor·ru·ga·tion \ˌkȯr-ə-ˈgā-shən, ˌkär-\

Definition of corrugation

  1. 1 :  the act of corrugating

  2. 2 :  a ridge or groove of a surface that has been corrugated

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First Known Use of corrugation

1528

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perfunctory

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