- irrational number
- number that cannot be expressed as the ratio of two whole numbers (Mathematics)

*English contemporary dictionary.
2014.*

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**Irrational Number**— [engl.], irrationale Zahl … Universal-Lexikon**Irrational number**— In mathematics, an irrational number is any real number that is not a rational number that is, it is a number which cannot be expressed as a fraction m / n , where m and n are integers, with n non zero. Informally, this means numbers that cannot… … Wikipedia**irrational number**— noun a real number that cannot be expressed as a rational number • Syn: ↑irrational • Hypernyms: ↑real number, ↑real • Hyponyms: ↑transcendental number, ↑algebraic number * * * Math. a … Useful english dictionary**irrational number**— Math. a number that cannot be exactly expressed as a ratio of two integers. [1545 55] * * * Among the real numbers, any of those that cannot be represented as quotients of integers. In decimal form, irrational numbers are represented by… … Universalium**irrational number**— noun Date: 1551 a number that can be expressed as an infinite decimal with no set of consecutive digits repeating itself indefinitely and that cannot be expressed as the quotient of two integers … New Collegiate Dictionary**irrational number**— noun Any real number that cannot be expressed as a ratio of two integers … Wiktionary**irrational number**— A real number that is not rational … Philosophy dictionary**irrational number**— irra′tional num′ber n. math. a number that cannot be exactly expressed as a ratio of two integers • Etymology: 1545–55 … From formal English to slang**Irrational**— may refer to: *Irrationality *Irrational rhythm, *Irrational exuberance *Irrational GamesIn mathematics: *Irrational number *Proof that e is irrational *Proof that pi; is irrational *Quadratic irrational *List of integrals of irrational… … Wikipedia**Number**— For other uses, see Numbers (disambiguation). A number is a mathematical object used to count and measure. In mathematics, the definition of number has been extended over the years to include such numbers as zero, negative numbers, rational… … Wikipedia