| Fmed | median frequency |
|---|---|
| LC50 | median lethal concentration |
| LM | lactic acid mineral [medium]; lactose malabsorption; laryngeal mask; laryngeal muscle; lateral malle... |
| MCF | macrophage chemotactic factor; median cleft face; medium corpuscular fragility; microcomplement fixa... |
| MCV | mean cell volume; mean clinical value; mean corpuscular volume; median cell volume; motor conduction... |