noun (plural rationes decidendi /ˌrätēˈōnēz/)Law
The rule of law on which a judicial decision is based.
- Courts are bound by principles of law, the ratio decidendi of cases.
- The former are described as being the ratio decidendi (reasons for the decision).
- If property suddenly became available all over the country many of the rationes decidendi of the past would be quite inappropriate.
Latin, literally 'reason for deciding'.
For editors and proofreaders
Syllabification: ra·ti·o de·ci·den·di
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