Breadcrumb Home > Dictionary > Index C caesium: Meaning and Definition of Find definitions for: cae•si•um Pronunciation: (sē'zē-um), [key] — n. Chem. cesium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: caesium (Thesaurus) Caesar salad caespitose TrendingHere are the facts and trivia that people are buzzing about. Hard Labor Current Events This Week: June 2023 Languages Spoken in Each Country of the World User's Guide to Environmental Language The Washington Monument: Facts, History & Profile LGBT Pride Month | Biographies of Notable Individuals Civilian Labor Force ✖ Related Content Daily Word Quiz: poetaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language