Definition

A type of larva from a specific fly that makes a protective case from silk and materials like sand or plant parts.

Example

The caddisworm can be found in freshwater streams, where it builds its unique silk case.

Conversation

Have you ever seen a caddisworm in the river?

No, I haven't! What do they look like?

They're really interesting; they make little cases out of bits of debris.

That sounds cool! I should look for one next time I'm fishing.

Synonyms & Antonyms

Root Explanation

Caddisworm → The word 'caddis' comes from the Old English 'caddis', meaning a type of insect, and 'worm' (from Old English 'wyrm', meaning serpent or worm). The term 'caddisworm' refers to the larval stage of certain aquatic insects that are often found in a protective case, resembling a worm.

Memory Tip

Think of the Old English word for a type of insect ('caddis') combined with the word for a 'worm' — this helps you remember that a caddisworm is an insect larva that looks like a worm.

Visually Confused Words