the aquatic larva of a caddis fly, which constructs a protective case around itself made of silk, sand, stones, etc
Also called: caseworm, strawworm
WordReference Random House Unabridged Dictionary of American English © 2025
cad•dis1
(kad′is),USA pronunciation n.
cad′dised, adj.
cad•dis2 (kad′is),USA pronunciation n.
WordReference Random House Unabridged Dictionary of American English © 2025- Textiles, Clothinga kind of woolen braid, ribbon, or tape.
- Anglo-French) is apparently a distinct word
- Catalon cadirs, of obscure orig; Middle English cadace, cadas material for padding doublets (
- Old Provencal
- Middle French cadis kind of woolen cloth
- probably 1570–80
cad•dis2 (kad′is),USA pronunciation n.
- Insectscaddisworm.
- by shortening
cad•dis•worm
(kad′is wûrm′),USA pronunciation n.
- Insectsthe 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 caddis, caddice, strawworm.
- caddis (perh. plural, taken as singular, of caddy, diminutive of cad larva, ghost) + worm 1615–25
Collins Concise English Dictionary © HarperCollins Publishers::
'caddis' also found in these entries (note: many are not synonyms or translations):