/ Dictionary / Index C celesta: Meaning and Definition of Find definitions for: ce•les•ta Pronunciation: (su-les'tu), [key] — n. a musical instrument consisting principally of a set of graduated steel plates struck with hammers that are activated by a keyboard. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: celesta (Thesaurus) celery salt Celeste Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language