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. 2019
Examples from the Web for caddisworm
Historical Examples of caddisworm
Life would be finer if we did not drag that caddisworm's house of the past behind us.