/ Dictionary / Index P Poisson distribution: Meaning and Definition of Find definitions for: Pois•son' distribu"tion Pronunciation: (pwä-sōn' Fr. pwa-sôn'), [key] — Statistics. Statistics. a limiting form of the binomial probability distribution for small values of the probability of success and for large numbers of trials: particularly useful in industrial quality-control work and in radiation and bacteriological problems. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. poisonwood Poisson's ratio Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language