noun
- plural of nucleolus; small, dense regions within cell nuclei where ribosomal RNA is synthesized
Usage: biology; technical
Examples
- The nucleoles were clearly visible under the microscope after staining.
- Scientists observed that the nucleoles became more prominent during periods of active protein synthesis.
- Cancer cells often have enlarged nucleoles compared to normal cells.
- The researcher counted the number of nucleoles in each cell nucleus.
- Nucleoles disappear during cell division and reform afterward.
- The biology textbook explained how nucleoles function in ribosome production.