irrational number

Other forms: irrational numbers

Definitions of irrational number

1. noun

   a real number that cannot be expressed as a rational number
   synonyms: irrational

   types:

   transcendental number

   an irrational number that is not algebraic

   algebraic number

   root of an algebraic equation with rational coefficients

   pi

   the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

   e

   the base of the natural system of logarithms; approximately equal to 2.718282...

   type of:

   real, real number

   any rational or irrational number