/ Dictionary / Index C claytonia: Meaning and Definition of Find definitions for: clay•to•ni•a Pronunciation: (klā-tō'nē-u), [key] — n. any of the low, succulent plants constituting the genus Claytonia of the purslane family, having basal leaves and long clusters of white or rose-colored flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: claytonia (Thesaurus) Clayton fern cld. Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language