/ Dictionary / Index C caducous: Meaning and Definition of Find definitions for: ca•du•cous Pronunciation: (ku-d'kus, -dy'-), [key] — adj. dropping off very early, as leaves. subject to shedding. transitory; perishable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: caducous (Thesaurus) caducity Cadwallader Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language