Definition

A small, round structure found inside the nucleus of a cell, made of protein and RNA, that helps produce ribosomes.

Example

The nucleolus is essential for ribosome production in eukaryotic cells.

Conversation

Have you ever heard of the nucleolus?

Yeah, I think it’s part of a cell's nucleus, right?

Exactly! It’s important for making ribosomes.

That’s cool! I didn’t know it played such a big role.

Synonyms & Antonyms

Root Explanation

Nucleolus → It is formed from "nucleus" (from Latin, meaning kernel or core) and the diminutive suffix "-olus" (meaning small). The word "nucleolus" refers to a small nucleus, specifically the small, dense structure within a cell nucleus.

Memory Tip

Think of a 'small core' — 'nucleus' means core, and '-olus' indicates something small. This helps you remember that a nucleolus is a small part of the nucleus.

Visually Confused Words