| Abbreviation | Definition |
|---|---|
| LMDCI(CBER) | Laboratory of Mycobacterial Diseases and Cellular Immunology (CBER) |
| LMDQC(CBER) | Laboratory of Methods Development and Quality Control (CBER) |
| LMO | Living Modified Organism |
| LMS | Laboratory Management System |
| LMV | Laboratory of Molecular Virology |
| LMV(CBER) | Laboratory of Molecular Virology (CBER) |
| LNC | Labeling and Nomenclature Committee |
| LNE | Laboratoire National de Metrologie et d'Essias (National Laboratory of Metrology and Essays) |
| LOA | Letter Of Agreement |
| LOAEL | Lowest Observed Adverse Effect Level |
| LOB | Laboratory Operations Branch |
| LOB(ORA) | Laboratory Operations Branch (ORA) |
| LOC | Level Of Concern |
| LOCF | Last Observation Carried Forward |
| LOD | Limit Of Detection |
| LOEL | Lowest Observed Effect Level |
| LOINC | Logical Observation Identifier Name Code |
| LOQ | Limit Of Quantification |
| LOV | List Of Values |
| LPB | Leasing and Policy Branch |