Noun | 1. | irrational number - a real number that cannot be expressed as a rational number |

(mathematics) | irrational number - A real number which is not a rational number, i.e. it is not the ratio of two integers.The decimal expansion of an irrational is infinite but does not end in an infinite repeating sequence of digits. Examples of irrational numbers are pi, e and the square root of two. |

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Iroquoian language

Iroquois

Iroquois League

Irous

Irp

IRQ

IRR

irradiance

irradiant

Irradiate

irradiation

irradicate

irrational

irrational hostility

irrational impulse

irrational motive

**-- irrational number --**

irrationality

irrationally

irrationalness

Irrawaddy

Irrawaddy River

irreality

irrebuttable

irreceptive

irreclaimable

Irrecognition

Irrecognizable

Irreconcilability

Irreconcilable

Irreconcile

Irreconcilement

Irreconciliation

Iroquois

Iroquois League

Irous

Irp

IRQ

IRR

irradiance

irradiant

Irradiate

irradiation

irradicate

irrational

irrational hostility

irrational impulse

irrational motive

irrationality

irrationally

irrationalness

Irrawaddy

Irrawaddy River

irreality

irrebuttable

irreceptive

irreclaimable

Irrecognition

Irrecognizable

Irreconcilability

Irreconcilable

Irreconcile

Irreconcilement

Irreconciliation