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ultra vires adv or adj
[Latin, beyond the power or means (of)]
: beyond the scope or in excess of legal power or authority (as of a corporation) [the agency acted ultra vires] [the agreement was ultra vires] compare intra vires
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.