noun (plural rationes decidendi /ˌratɪˈəʊniːz/)Law
The rule of law on which a judicial decision is based.
More example sentences
- 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'.
Definition of ratio decidendi in:
- The US English dictionary