| MMFR | maximum midexpiratory flow rate; maximal midflow rate |
|---|---|
| MMFV | maximum midrespiratory flow volume |
| MMI | macrophage migration inhibition; maximum medical improvement; methylmercaptoimidazole; mucous membra... |
| MNA | maximum noise area |
| MNL | marked neutrophilic leukocytosis; maximum number of lamellae; mononuclear leukocyte |