| Abbreviation | Definition |
|---|---|
| LMN | Lower Motor Neuron |
| LMP | Last Menstrual Period |
| LMP | Low Malignant Potential |
| LMP | Low Methoxyl Pectinate |
| LMSC | Local Masters Swimming Committee |
| LMT | Last Minute Treatment |
| LMWH | low-molecular-weight heparin |
| LND | Lesch-Nyhan Disease |
| LNG | levonorgestrel |
| LO | Lateral Oblique view |
| LO | Lateral Oblique view (in radiography) |
| LOA | Left Occipitoanterior |
| LOAEL | Lowest Observed Adverse Effect Level |
| LOAEL(s) | lowest observed adverse effect levels |
| LOC | Level Of Consciousness |
| LOFT | Low Omission Formaldehyde Treatment |
| LOIF | Left Outer Inner Forward |
| LOL | Loss Of Legs |
| LOM | Left Otitis Media |
| LOM | Limitation Of Movement |