ratio decidendi

ratio decidendi
ra·tio de·ci·den·di /'rā-shē-ˌō-ˌde-sə-'den-ˌdī, 'rā-ˌshō-, -ˌdā-sē-'den-dē/ n [Latin, grounds for deciding]: the principle or rule constituting the basis of a court decision

Merriam-Webster’s Dictionary of Law. . 1996.

ratio decidendi
index authority (documentation)

Burton's Legal Thesaurus. . 2006


ratio decidendi
'the rule in a decision'. This is a crucial part of the understanding of the way in which the common law works. Once a system has adopted of binding precedent, it has to be discovered what it is in the previous decision that binds the court later in time. While it is sometimes possible to peruse the opinion of the judge to find the rule, this is not by any means a reliable way of discovering the rule in the case. The soundest general method is to discover the material facts of the case, determine what the decision was and then to draw the proposition that most closely marries the material facts to the actual decision. It is difficult enough to do this with a single opinion but very much harder with multiple opinions such as come from the Court of Appeal, the Inner House and the House of Lords. Sometimes it is said to be impossible to form a ratio of general application. Anything that is said that is not part of the ratio is said to be an obiter dictum.

Collins dictionary of law. . 2001.


ratio decidendi
(Latin: The ground or reason of decision.)
The legal principle upon which the decision in a specific case is founded.

Dictionary from West's Encyclopedia of American Law. 2005.


ratio decidendi
[Latin, The ground or reason of decision.] The legal principle upon which the decision in a specific case is founded.

Short Dictionary of (mostly American) Legal Terms and Abbreviations.

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  • Ratio decidendi — (plural: rationes decidendi) is a Latin phrase meaning the reason (or ratio nale) for the decision. The ratio decidendi is:: [t] he point in a case which determines the judgment [See Black s Law Dictionary, page 1135 (5th ed. 1979).] or: the… …   Wikipedia

  • Ratio decidendi — Saltar a navegación, búsqueda Ratio decidendi es una expresión latina, que significa literalmente en español razón para decidir o razón suficiente . Hace referencia a aquellos argumentos en la parte considerativa de una sentencia o resolución… …   Wikipedia Español

  • Ratio Decidendi — (lat. „Entscheidungsgrund“) steht für Rechtsansichten in einer Gerichtsentscheidung, die für die Entscheidung tragend sind. Gegensatz ist das obiter dictum. Siehe auch: Präzedenzfall, Ratio Kategorien: Recht (England und Wales)RechtsspracheRecht… …   Deutsch Wikipedia

  • Ratio decidendi — Die ratio decidendi (lateinisch) steht für Rechtsansichten in einer Gerichtsentscheidung, die für die Entscheidung tragend sind. Gegensatz ist das obiter dictum. Siehe auch: Präzedenzfall, Ratio …   Deutsch Wikipedia

  • ratio decidendi — ˌdesə̇ˈden(ˌ)dē noun (plural rationes decidendi) Etymology: Latin : the reason or ground for a judicial decision …   Useful english dictionary

  • ratio decidendi — noun A judicial decision on a point of law as opposed to an obiter dictum which is merely a judicial opinion. See Also: obiter, obiter dictum …   Wiktionary

  • ratio decidendi — /ˌreɪʃioʊ deɪsəˈdɛndaɪ/ (say .raysheeoh daysuh denduy) noun Law 1. the decision in a case and the facts material to it. 2. the principle upon which a case is decided. {Latin: reason for deciding} …  

  • ratio decidendi — /reysh(iy)ow desadenday/ The ground or reason of decision. The point in a case which determines the judgment …   Black's law dictionary

  • ratio decidendi — The reason for deciding; the reasoning or principle, or ground upon which a case is decided …   Ballentine's law dictionary

  • Ratio — This article is about the mathematical concept. For the Swedish institute, see Ratio Institute. For the academic journal, see Ratio (journal). For the philosophical concept, see Reason. For the legal concept, see Ratio decidendi. The ratio of… …   Wikipedia

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