rational number
noun Mathematics.
a number that can be expressed exactly by a ratio of two integers.
Origin of rational number
First recorded in 1900–05
Words nearby rational number
ration,
rational,
rational form,
rational function,
rational horizon,
rational number,
rational operation,
rational therapy,
rational-emotive therapy,
rationale,
rationalism
British Dictionary definitions for rational number
rational number
noun
any real number of the form a / b, where a and b are integers and b is not zero, as 7 or 7/3
Scientific definitions for rational number
rational number
A number that can be expressed as an integer or a quotient of integers. For example, 2, -5, and 12 are rational numbers.