| MBL | Marine Biological Laboratory; menstrual blood loss; minimum bactericidal level |
|---|---|
| MCBR | minimum concentration of bilirubin |
| MCC | mean corpuscular hemoglobin concentration; medial cell column; Medical Council of Canada; metacerebr... |
| MCID | minimum clinically important difference |
| MCM | methylmalonic coenzyme A mutase; minimum capacitation medium |