Factorial
[Adjective]
Webster's Dictionary 1913
1. Of or pertaining to a factory.
2. Related to factorials.
1. A name given to the factors of a continued product when the former are
derivable from one and the same function F(x) by successively imparting a constant
increment or decrement h to the independent variable. Thus the product F(x).F(x + h).F(x + 2h) . . . F[x + (n-1)h] is called a factorial term, and its several factors take the name of factorials.
2. The product of the
consecutive numbers from unity up to any given number.