/ Dictionary / Index P Pisidian: Meaning and Definition of Find definitions for: Pi•sid•i•an Pronunciation: (pi-sid'ē-un, pī-), [key] — n. the extinct language of Pisidia, not known to be related to any other language, written in a script derived from the Greek alphabet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pisidia pisiform Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language