/ Dictionary / Index P polydactyly: Meaning and Definition of Find definitions for: pol•y•dac•ty•ly Pronunciation: (pol"ē-dak'tu-lē), [key] — n. Pathol. the condition of being polydactyl. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polydactyly (Thesaurus) polydactyl polydaemonism Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language