transcendental number

noun, Mathematics
1.
a number that is not a root of any algebraic equation having integral coefficients, as π or e .
Also called transcendental.
British Dictionary definitions for transcendental number

transcendental number

noun
1.
(maths) a number or quantity that is real but nonalgebraic, that is, one that is not a root of any polynomial with rational coefficients such as π or e