caddisworm
/ˈkædɪsˌwɜrm/
noun
- The larva of a caddisfly, which lives in water and builds a protective case around itself using sand, twigs, or small stones.
- A caddisworm's case provides camouflage from predators.
- The caddisworm uses silk to glue tiny pebbles together for its case.
- Children love to search for caddisworms in the shallow parts of the stream.