| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |
|---|---|
| LAMP | lysosome-associated membrane protein |
| LBM | lean body mass; loose bowel movement; lung basement membrane |
| LM | lactic acid mineral [medium]; lactose malabsorption; laryngeal mask; laryngeal muscle; lateral malle... |
| LMA | laryngeal mask airway; left mentoanterior [fetal position]; limbic midbrain area; liver cell membran... |