Definition

A tiny hair-like structure on the surface of a cell that can move back and forth, helping the cell to move or to move fluids around it.

Example

The cilia on the surface of the cell help it swim through the water.

Conversation

Did you know that a cilium is like a tiny hair on a cell?

Really? I never heard of that before!

Yeah, they help cells move and even create currents in fluids.

That's fascinating! I love learning about how tiny things work.

Synonyms & Antonyms

Root Explanation

Cilium comes from Latin 'cilium' (meaning eyelash or small hair). The word refers to a small hair-like structure, often found on the surface of cells, resembling eyelashes.

Memory Tip

Think of 'cilium' as a small hair or 'eyelash' — this helps you remember that it refers to tiny hair-like structures.

Visually Confused Words