Meaning of FACTORIAL in English

FACTORIAL

I. fakˈtōrēəl, -tȯr- adjective

Etymology: factor (I) + -ial

1.

a. : of, relating to, or involving the use of factorials

factorial mathematics

b. : involving or based on replication with a variable introduced in each replicate

a factorial experiment

factorial study of mental processes

2. : of, relating to, or involving a factor

advantages of factorial supervision of an estate

• fac·to·ri·al·ly -ēəlē, -li adverb

II. noun

( -s )

Etymology: factor (I) + -ial

: a function of a positive integer n denoted by n! and defined by the relation n!.1.2.3…n with the convention that 0! is usually assigned the value one

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.