Jellyfish: meaning, definitions and examples

Commonly used in scientific contexts, general conversations, and educational materials. It refers to the marine animals known for their gelatinous bodies and sting.

• We saw a jellyfish while snorkeling.
• Jellyfish populations are increasing in some areas due to climate change.

Used in both educational and conversational contexts to emphasize their marine nature. Often used in documentaries and educational programs about ocean life.

• Sea jellies have a unique way of moving through water.
• The aquarium has a new exhibit featuring sea jellies.

Primarily used in scientific contexts or in languages other than English (e.g., Spanish), referring to the same creature as a jellyfish. It's a more formal term.

• Medusas can be found in oceans all around the world.
• The scientific study of medusas reveals much about marine ecosystems.

A more casual or colloquial term often used in informal conversations, especially when talking to children or in a non-scientific setting.

• Watch out for jellies when you're swimming!
• Kids love learning about jellies because they look so cool.