judicial review n1 : review
2 : a constitutional doctrine that gives to a court system the power to annul legislative or executive acts which the judges declare to be unconstitutional
: the process of using this power see also checks and balances Marbury v. Madison in the Important Cases section
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.