real number

noun Mathematics.

1. a rational number or the limit of a sequence of rational numbers, as opposed to a complex number.

noun

1. a number expressible as a limit of rational numbersSee number (def. 1)

1. A number that can be written as a terminating or nonterminating decimal; a rational or irrational number. The numbers 2, -12.5, 37, and pi (π) are all real numbers.