Definition

A type of marine animal that is part of a group called tunicates, which can be found attached to surfaces in the ocean. They have two openings for water to flow in and out.

Example

The ascidian is often found on rocks and can look like a small sac in the water.

Conversation

Have you ever seen an ascidian up close?

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

They're kind of like little sea squirt creatures, very interesting to observe.

That sounds cool! I’d love to check them out sometime.

Synonyms & Antonyms

Root Explanation

Ascidian is derived from the Greek word "askidion" (meaning little bag or sac), which refers to the sac-like body structure of these marine animals. The term describes a group of marine invertebrates that have a sac-like form.

Memory Tip

Imagine a little 'sac' ('askidion') in the ocean — that's what an ascidian is, a marine creature with a sac-like body.

Visually Confused Words