/ Dictionary / Index C cascarilla: Meaning and Definition of Find definitions for: cas•ca•ril•la Pronunciation: (kas"ku-ril'u), [key] — n. Also calledthe bitter, aromatic bark of a West Indian shrub, Croton eluteria, of the spurge family, used as a tonic. the shrub itself. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cascarilla (Thesaurus) cascara sagrada Casco Bay Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language