| MIO | minimum identifiable odor; modular input/output |
|---|---|
| MPO | maximum power output; minimal perceptible odor; myeloperoxidase |
| MRO | master reference oscillator; medical review officer; minimal recognizable odor; muscle receptor orga... |
| EC | effective concentration; ejection click; electrochemical; electron capture; embryonal carcinoma; eme... |
| MCC | mean corpuscular hemoglobin concentration; medial cell column; Medical Council of Canada; metacerebr... |