Definition, Meaning & Synonyms

nucleolus

Noun

/njuːˈklioʊləs/

Definition

A small, dense structure found in the nucleus of a cell that is responsible for ribosome production.

Examples

The nucleolus makes ribosomal RNA, which is a component of ribosomes.
In rapidly dividing cells, the nucleolus is particularly active.
Scientists can observe the nucleolus under a microscope when studying cell biology.

Meaning

The nucleolus is a non-membrane bound structure within the cell nucleus that plays a crucial role in the assembly of ribosomes, which are essential for protein synthesis.