| Abbreviation | Definition |
|---|---|
| LCS | Low Contact Stress |
| LCSSc | Limited Cutaneous Systemic Sclerosis |
| LCT | Loose Connective Tissue |
| LCTA | Lungs clear to auscultation |
| LCV | LeukoCytoclastic Vasculitis |
| LCx | Left Circumflex Artery |
| LD | Left Deltoid |
| LD | Lethal Dose |
| LD | Logarithm Digitalis |
| LD50 | Lethal Dose resulting in 50% mortality |
| LD-50 | Lethal Dose at 50 millirem |
| LDA | Low Dose Allergens |
| LDH | Lactate Dehydrogenase |
| LDL | Low Density Lipoprotein |
| LDL-C | low-density lipoprotein cholesterol |
| LDP | Lumbo-Dorsal Pain |
| LDR | Labor Deliver Recovery |
| LE | Life Expectancy |
| LE | Lip Extension |
| LEADERS | Lightweight Epidemiology Advanced Detection And Emergency Response System |