| Abbreviation | Definition |
|---|---|
| LDAM | Laboratory of Dentistry and Applied Materials |
| LDC | Leucocyte Differential Count |
| LDES | Laboratory Data Entry System |
| LDH | Lactic De-Hydrogenase |
| LDL | low density lipids |
| LDL | low-density lipoprotein |
| LDL | Low-Density Lipoprotein (Cholesterol) |
| LDLA | Louisiana Dental Laboratory |
| LDLA | Louisiana Dental Laboratory Association |
| LDM | Laboratory Development Model |
| LDMM | Laboratory Developed Moisture Meter |
| LDR | low dose radiation |
| LDRD | Laboratory Directed Research And Development |
| LDSA | Laboratory of Demographic and Social Analyses |
| LDSM | Laboratory for the Development of Substitute Materials |
| LDT | Laboratory Developed Test |
| LDT | Laboratory Developed Tests |
| LDTD | Laser Diode Thermal Desorption |
| LE | Lupus Erythematosus |
| LEAPS | Ligand Epitope Antigen Presentation System |