- 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.
Origin of caddisworm
1615–25; caddis (perhaps plural, taken as singular, of caddy, diminutive of cad larva, ghost) + worm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for caddisworm
Life would be finer if we did not drag that caddisworm's house of the past behind us.