Definition

A type of sea creature that has a spiral shell and is part of a group of animals called cephalopods. It is known for its beautiful, pearly shell and lives in the ocean.

Example

The nautilus swims gracefully through the water, using its shell for buoyancy.

Conversation

Have you ever seen a nautilus shell in person?

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

They're really beautiful, with a spiral shape and shiny interior.

That sounds amazing! I’d love to find one at the beach.

Synonyms & Antonyms

Root Explanation

**Nautilus** → The word 'nautilus' comes from the Latin 'nautilus', which is derived from the Greek 'ναυτίλος' (nautilos), meaning 'ship' or 'sailor'. The term originally referred to a type of marine mollusk that has a spiral shell, resembling a ship's hull. Thus, 'nautilus' refers to a creature that is akin to a sailor or ship in its form.

Memory Tip

Imagine a sailor ('naut-' from Greek) inside a shell that looks like a ship. This helps you remember that 'nautilus' refers to a marine creature with a shell resembling a ship.

Visually Confused Words