/ Dictionary / Index P polygon: Meaning and Definition of Find definitions for: pol•y•gon Pronunciation: (pol'ē-gon"), [key] — n. a figure, esp. a closed plane figure, having three or more, usually straight, sides. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polygon (Thesaurus) Polygnotus polygonaceous Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language