Found 2 items, similar to caseworm.
English → English (WordNet) Definition: caseworm caseworm n : insect larva that constructs a protective case around its body
English → English (gcide) Definition: Caseworm Caseworm \Case"worm`\, n. (Zo["o]l.) A worm or grub that makes for itself a case. See Caddice. [1913 Webster]