| MNAP | mixed nerve action potential |
|---|---|
| MPD | main pancreatic duct; maximum permissible dose; mean population doubling; membrane potential differe... |
| MRP | mean resisting potential; medical reimbursement plan; multidrug resistance-associated protein |
| MUAP | motor unit action potential |
| MUP | major urinary protein; maximal urethral pressure; motor unit potential |