al·​ti·​pla·​na·​tion | \ ˌaltə̇plāˈnāshən, -pləˈ-\
plural -s

Definition of altiplanation

: the erosion process that produces extensive flat surfaces at high altitudes

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First Known Use of altiplanation

1916, in the meaning defined above

History and Etymology for altiplanation

alti- + planation

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The first known use of altiplanation was in 1916

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to affect and impair by alcohol or a drug

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