/ Dictionary / Index P Peloponnesus: Meaning and Definition of Find definitions for: Pel•o•pon•ne•sus Pronunciation: (pel"u-pu-nē'sus), [key] — n. a peninsula forming the S part of Greece: seat of the early Mycenaean civilization and the powerful city-states of Argos, Sparta, etc. 986,912; 8356 sq. mi. (21,640 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: peloponnesus (Thesaurus) Peloponnesian War Pelops Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language