| Abbreviations | Meaning |
 | MMP | Matrix Metalloproteinase; Maximum Maintained Pressure; Muscle Mechanical Power |
| OMD | Ocular Muscle Dystrophy; Oculomandibulodyscephaly; Orbital Maxillary Disjunction; Organic Mental Disorder; Oromandibular Dystonia |
| MRO | Master Reference Oscillator; Medical Review Officer; Minimal Recognizable Odor; Muscle Receptor Organ |
| FDI | First Dorsal Interosseus (muscle Of The Hand) |
| VMO | Vastus Medialis Obliquus (a Muscle) |
| MEB | Medical Evaluation Board; Muscle-eye-brain [disease] |
| ASM | Airway Smooth Muscle |
| MMST | Muscle Strength |
| SM | Smooth Muscle |
| RM | Respiratory Muscle |
| STR | Slow-twitch Red (skeletal Muscle) |
| MSR | Muscle Stretch Reflex |
| FTW | Fast-twitch White (skeletal Muscle) |
| GM | Gastrocnemius [muscle] |
| MG | Muscle Group |
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