| Abbreviation | Definition |
|---|---|
| LLDT | Load Local Descriptor Table |
| LLETZ | Large Loop Excision of the Transformation Zone |
| LLF | Left Lateral Flexion |
| LLF | Left Little Finger |
| LLL | Low Level Language |
| LLL | Low Level List |
| LLL | Left lower leg |
| LLL | Left Lower Lid |
| LLL | Left Lower Lung |
| LLL | Left Lower Lobe |
| LLL | Le Leche League |
| LLN | Lower limit of normal |
| LLNL | Lawrence-Livermore National Laboratory |
| LLNL | Lawrence Livermore National Laboratory |
| LLP | Live Long & Prosper |
| LLQ | Left lower quadrant |
| LLQ | Leaving Life Questionnaire |
| LLR | Left lumbar region |
| LLR | Left Lateral Rectus |
| LLRW | Low-Level Radioactive Waste |
| LLS | Long leg splint |
| LLTD | Link Layer Topology Discovery |
| LLWAS | Low Level Wind Shear Alert System |
| LLWC | Long Leg Walking Cast |
| LLX | Left lower extremity |
| LM | Lunar Moudle |
| LM | Lithium Manganese |
| LM | Load Math |
| Lm | Meander length or river or stream |
| LM | Leisure Monitor |
| LM | Logistics Manager |
| LM | Laryngeal Muscle |
| LMA | Laryngeal mask airway |
| LMA | Laban Movement Analyst |
| LMA | Liver Cell Membrane Autoantibody |
| LMAO | Land Mail Art Objects |
| LMC | Lighting Management Consultant |
| LMC | Large Magellanic Cloud |
| LMC | Low Pressure Moulding Compound |
| LMD | Left Medline Deviation |
| LMD | Local Medical Doctor |
| LMD | Leucine Metabolism Disorder |
| LMD | Little Mans Disease |
| LME | Licentiate in Mechanical Engineering |
| LMFT | Lymphatic |
| LMFT | Licensed Marriage and Family Therapist |
| LMG | Light Machine Gun |
| LMH | Liquid Metallic Hydrogen |
| LMHC | Licensed Mental Health Counselor |
| LMI | Local Management Interface |