real number

The definition of a real number is any positive or negative number on the number line.

(noun)

An example of a real number is 1/2, 0, 1, 2, 3, 4, 5, etc.

See real number in Webster's New World College Dictionary

Math. any rational or irrational number not having an imaginary part

See real number in American Heritage Dictionary 4

noun

A number that is rational or irrational, not imaginary.

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