caseworm

Definitions of caseworm

1. noun

   insect larva that constructs a protective case around its body
   types:

   caddisworm, strawworm

   larva of the caddis fly; constructs a case of silk covered with sand or plant debris

   type of:

   larva

   the immature free-living form of most invertebrates and amphibians and fish which at hatching from the egg is fundamentally unlike its parent and must metamorphose