/ Dictionary / Index P Perthshire: Meaning and Definition of Find definitions for: Perth•shire Pronunciation: (pûrth'shēr, -shur), [key] — n. Perth (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. perthite pertinacious Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language