noun
- plural of macronucleus; the larger nuclei in certain single-celled organisms that control everyday cellular functions
Usage: biology; microbiology
Examples
- The paramecium contains both macronuclei and micronuclei.
- Scientists observed the macronuclei dividing during cell reproduction.
- The macronuclei in ciliates are responsible for gene expression.
- Researchers studied how macronuclei regulate protein synthesis.
- The macronuclei appeared larger under the microscope than the micronuclei.
- Each ciliate cell typically contains multiple macronuclei.