/ Dictionary / Index C Clement X: Meaning and Definition of Find definitions for: Clement X Pronunciation: [key] — (Emilio Altieri) 1590–1676, Italian ecclesiastic: pope 1670–76. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Clement IX Clement XI Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language