/ Dictionary / Index P peridot of Ceylon: Meaning and Definition of Find definitions for: per'idot of Ceylon' Pronunciation: [key] — Jewelry. Jewelry. a honey-colored tourmaline, used as a gem: not a true peridot. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. peridotite perigean tide Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language