Definition of "multifactorial"

multifactorial

adjective
not comparable
1. Involving, or controlled by multiple factors.
  Quotations
  One of the under-reported dynamics during the coronavirus pandemic has been the collapse of One Nation’s vote. The reasons for this are likely multi-factorial.
  2021 February 2, Katharine Murphy, The Guardian‎
2. (genetics, of a trait) Involving multiple genetic or environmental factors.
noun
plural multifactorials
1. (mathematics) 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)...).