Definition

A type of marine snail that belongs to a group of mollusks, often without a shell and with gills located behind the heart.

Example

The opisthobranch is known for its vibrant colors and unique body structure.

Conversation

Did you know that some of the coolest sea creatures are opisthobranchs?

Really? I’ve never heard of them before. What are they like?

They’re marine gastropods, and some even have vibrant colors!

That sounds fascinating! I’d love to see one in person.

Synonyms & Antonyms

Root Explanation

Opisthobranch → It is formed from "opistho-" (from Greek "opisthos", meaning behind or at the back) and "branchia" (from Greek "branchia", meaning gills). The term describes a group of mollusks that have their gills located towards the back of their bodies.

Memory Tip

Think of 'behind' ('opistho-') where the gills ('branchia') are located in these unique sea creatures.

Visually Confused Words