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: an unjust or excessive exercise of power: as
a : unlawful, wrongful, or corrupt exercise of authority by a public official acting under color of authority that causes a person harm
b : dishonest, unfair, wrongful, or burdensome conduct by corporate directors or majority shareholders that entitles minority shareholders to compel involuntary dissolution of the corporation
c : inequality of bargaining power resulting in one party's lack of ability to negotiate or exercise meaningful choice see also unconscionability
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.