irrational number

== English == === Pronunciation === === Noun === irrational number (plural irrational numbers) (mathematics) Any real number that cannot be expressed as a ratio of two integers. The square root of a positive integer is an irrational number unless the positive integer is a perfect square, in which case the square root will also be a positive integer. ==== Antonyms ==== rational number ==== Translations ==== === See also === algebraic number transcendental number