multifactorial

Adjective

 * 1) Involving, or controlled by multiple factors.
 * 2)  Involving multiple genetic or environmental factors.
 * 1)  Involving multiple genetic or environmental factors.
 * 1)  Involving multiple genetic or environmental factors.

Noun

 * 1)  A generalisation of a factorial in which each element to be multiplied differs from the next by an integer (e.g. n(n-3)(n-6)(n-9)...).