/ Dictionary / Index C cistern: Meaning and Definition of Find definitions for: cis•tern Pronunciation: (sis'turn), [key] — n. a reservoir, tank, or container for storing or holding water or other liquid. a reservoir or receptacle of some natural fluid of the body. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cistern (Thesaurus) Cistercian cisterna Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language