irrational number

English Thesaurus

1. a real number that cannot be expressed as a rational number (noun.quantity)

hypernym	:	real, real number,
definition	:	any rational or irrational number (noun.quantity)

hyponym	:	transcendental number,
definition	:	an irrational number that is not algebraic (noun.quantity)

hyponym	:	algebraic number,
definition	:	root of an algebraic equation with rational coefficients (noun.quantity)