There are multiple definitions:
mini-chromosome maintenance(English)
- a DNA helicase that is essential for genomic DNA replication, and consists of six gene products
- DNA
- Genetics
- https://www.ncb…les/PMC3809582/
megacisterna magna(Latin)
- a developmental malformation of the posterior fossa, morphologically vermis and cerebellar hemispheres are intact
- EEG
- Anatomy, Brain (dys)function, Psychiatry
- https://doi.org….5455/apd.36699