Hypertext Webster Gateway: "factorial"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Factorial \Fac*to"ri*al\, a.
1. Of or pertaining to a factory. --Buchanan.
2. (Math.) Related to factorials.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Factorial \Fac*to"ri*al\, n. (Math.)
(a) pl. 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. --Brande & C.
(b) The product of the consecutive numbers from unity up
to any given number.
From WordNet (r) 1.7 (wn)
factorial
adj : of or relating to factorials
n : the product of all the integers up to and including a given
integer; "1, 2, 6, 24, and 120 are factorials"
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