| Abbreviation | Definition |
|---|---|
| LLL | Le Leche League |
| LLL | Left Lower Leg |
| LLL | Left Lower Lid |
| LLL | Left Lower Lobe |
| LLL | Left Lower Lung |
| LLN | Lower limit of normal |
| LLP | Live Long & Prosper |
| LLQ | Leaving Life Questionnaire |
| LLR | Left lumbar region |
| LLS | Long leg splint |
| LLWC | Long Leg Walking Cast |
| LLX | Left lower extremity |
| LMA | Laryngeal mask airway (for ventilating a patient) |
| LMBB | Lumbar Medial Branch Block |
| LMD | Left Medline Deviation |
| LMD | Leucine Metabolism Disorder |
| LMD | Little Mans Disease |
| LMD | Local Medical Doctor |
| LMFT | Lymphatic |
| LMKB | Limited Motion Knee Brace |