/ Dictionary / Index C cerastium: Meaning and Definition of Find definitions for: ce•ras•ti•um Pronunciation: (su-ras'tē-um), [key] — pl. -ums. any of various low-growing plants of the genus Cerastium, having leaves covered with whitish or grayish down and small white flowers, and including mouse-ear chickweed and snow-in-summer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cerastium (Thesaurus) cerastes cerat- Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language