caseworm

[ keys-wurm ]
/ ˈkeɪsˌwɜrm /

noun

a caddisworm or other insect larva that constructs a case around its body.

Origin of caseworm

First recorded in 1600–10; case2 + worm

British Dictionary definitions for caseworm

caseworm
/ (ˈkeɪsˌwɜːm) /

noun

another name for a caddis worm