/ Dictionary / Index P polysynthesism: Meaning and Definition of Find definitions for: pol•y•syn•the•sism Pronunciation: (pol"i-sin'thu-siz"um), [key] — n. the synthesis of various elements. the combining of several words of a sentence into one word. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polysyndeton polysynthetic Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language