Definition

A type of worm or grub that creates a protective case for itself, often found in aquatic environments.

Example

The caseworm built a small shelter from twigs and leaves to protect itself from predators.

Conversation

Have you ever seen a caseworm before?

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

They're actually pretty interesting; they create these little protective cases for themselves.

That sounds cool! I'd love to see one in nature.

Synonyms & Antonyms

Root Explanation

The word 'caseworm' is formed from 'case' (from Old French *cas*, meaning a container or covering) and 'worm' (from Old English *wyrm*, meaning serpent or dragon). A caseworm refers to a type of larva that creates a protective case or covering for itself, resembling a worm.

Memory Tip

Think of a 'case' as a protective covering and a 'worm' as a creature that moves — together, they describe a larva that makes a case for itself.

Visually Confused Words