Definition

A fluid-filled organ found in many invertebrates that helps with balance and orientation, often containing a small structure called an otolith.

Example

The otocyst plays a crucial role in the balance of aquatic animals.

Conversation

I just learned about the otocyst in my biology class.

Oh really? What is it exactly?

It's an organ that helps some invertebrates with balance and orientation.

That sounds interesting! I didn't know they had something like that.

Synonyms & Antonyms

Root Explanation

Otocyst → It is formed from "oto-" (from Greek "ous, otos", meaning ear) and "cyst" (from Greek "kystis", meaning bladder or sac). The word "otocyst" refers to a sac-like structure in the ear that is involved in balance and hearing.

Memory Tip

Think of the Greek word for ear ('oto-') and the idea of a 'sac' ('cyst') — an otocyst is a sac in the ear that helps with balance.

Visually Confused Words