Definition of "quintic"

(mathematics) Of or relating to the fifth degree, such as a quintic polynomial which has the form a x 5 + b x 4 + c x 3 + d x 2 + e x + f = 0 (containing a term with the independent variable raised to the fifth power).  examples

(mathematics) a quintic polynomial: a x 5 + b x 4 + c x 3 + d x 2 + e x + f  examples