Law Dictionary

Erie doctrine

noun \ˈir-ē-\

Legal Definition of Erie doctrine

  1. :  a doctrine that a federal court exercising diversity jurisdiction over a case for which no federal law is relevant must apply the law of the state in which it is sitting —called also Erie Rule — see also Erie Railroad Co. v. Tompkins

Origin and Etymology of erie doctrine

from the Supreme Court case Erie Railroad Co. v. Tompkins, which resulted in definition of the doctrine

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a rounded knoll or a ridge of ice

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