/ Dictionary / Index S Stirling's formula: Meaning and Definition of Find definitions for: Stir'ling's for'mula Pronunciation: (stûr'lingz), [key] — Math. Math. a relation that approximates the value of n factorial (n!), expressed as (n/e)2&pgr;n&fullradicover;. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Stirling engine stirp Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language