IRRATIONAL NUMBER

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 Dictionary entry overview: What does irrational number mean? 

• IRRATIONAL NUMBER (noun)
  The noun IRRATIONAL NUMBER has 1 sense:

1. a real number that cannot be expressed as a rational number

  Familiarity information: IRRATIONAL NUMBER used as a noun is very rare.

 Dictionary entry details 

• IRRATIONAL NUMBER (noun)

Sense 1

Meaning:

A real number that cannot be expressed as a rational number

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

irrational; irrational number

Hypernyms ("irrational number" is a kind of...):

real; real number (any rational or irrational number)

Hyponyms (each of the following is a kind of "irrational number"):

transcendental number (an irrational number that is not algebraic)

algebraic number (root of an algebraic equation with rational coefficients)