Cnidarian: meaning, definitions and examples

Use this scientific term when discussing the phylum of marine animals that include corals, jellyfish, and sea anemones. It is typically used in academic or educational contexts.

• Cnidarians have specialized cells known as cnidocytes.
• Marine biologists study cnidarians to understand their unique biology.

Use this word when referring to the gelatinous, free-swimming member of the cnidarian phylum. Commonly mentioned in casual conversations, beach activities, or when discussing marine life.

• Watch out for jellyfish when swimming in the ocean.
• Jellyfish blooms are becoming more frequent due to changing ocean conditions.

Best used when talking about marine invertebrates that form colonies and build reefs. Often mentioned in ecological, environmental, or diving contexts.

• The Great Barrier Reef is made up of millions of tiny corals.
• Climate change is having a devastating effect on coral reefs.

This term is appropriate for discussing the often colorful, flower-like marine animals that attach to surfaces in the ocean. Frequently used in marine biology or while describing marine life in tide pools.

• Clownfish have a symbiotic relationship with sea anemones.
• Sea anemones use their tentacles to catch prey.