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- Dictionaryra·tion·al·i·ty/ˌraSHəˈnalədē/
noun
- 1. the quality of being based on or in accordance with reason or logic: "like any phobia, rationality plays only a small role"
- 2. the property of a number, quantity, or expression of being expressible, or containing quantities which are expressible, as a ratio of whole numbers.
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