rational
Meanings
adj
- Capable of reasoning.
- Logically sound; not self-contradictory or otherwise absurd.
- Healthy or balanced intellectually; exhibiting reasonableness.
- Comprising, or expressible as, a ratio
- Of a number, capable of being expressed as the ratio of two integers.
- Of an algebraic expression in indeterminates, or more generally a function: capable of being expressed as the ratio of two polynomials.
- Of a variety: (informally) geometrically simple almost everywhere; (formally) birationally equivalent to projective space
- Of a function between varieties: acting as a morphism on an open subset of its domain.
- Of a point on an algebraic variety over a field: whose coordinates belong to the field in question (in contrast to those points of the variety which are only defined over the algebraic closure of the base field).
- synonymous replacement for "condensed" in condensed formula.
noun
- A rational number: a number that can be expressed as the quotient of two integers.
noun
- The breastplate worn by Israelite high priests.
Pronunciation
Word forms
Etymology
From Old French rationel, rational, from Latin rationalis (“of or belonging to reason, rational, reasonable; having a ratio”), from ratio (“reason; calculation”).
Antonyms
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Translations
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