/ Dictionary / Index C caddisworm: Meaning and Definition of Find definitions for: cad•dis•worm Pronunciation: (kad'is-wûrm"), [key] — n. the aquatic larva of a caddisfly, having an armored head and a pair of abdominal hooks, and typically living in a case built from sand or plant debris. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: caddisworm (Thesaurus) caddish Caddo Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language