from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A lawsuit brought in part for the purpose of obtaining a judicial decision on an unclear point of law, especially involving the constitutionality of a statute.
  • noun An action that establishes a precedent for such a lawsuit.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun law A legal action intended to set a precedent.
  • noun computing Any of a set of conditions and variables used to test an application.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a representative legal action whose outcome is likely to become a precedent


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