- Mexican valerian
- MG98
- MGCD0103
- MGUS
- micelle
- microbicide
- microcalcification
- microflora
- microfluidic device
- microgram
- microliter
- micrometastasis
- micromolar
- micromole
- micronutrient
- microorganism
- microRNA
- microsatellite
- microsatellite instability
- microscope
- microscopic
- microsphere
- microstaging
- microwave acupuncture
- microwave therapy