| Abbreviation | Definition |
|---|---|
| LAW | Licensed Appropriation of Wealth |
| LAW | Learning Attendance Welfare |
| LAW | Lallams Assult Workforce |
| LAW | League of American Wheelmen |
| LAWRS | Limited Aviation Weather Reporting System |
| LAWS | Laser Atmospheric Wind Sounder |
| lb | pound (weight) |
| LB | Load Byte |
| LB | List Block |
| LB | Large Bowel |
| LB | Liver Biopsy |
| LBA | Logical Block Address |
| LBA | Linear Block Addressing |
| LBA | Large Block Addressing |
| LBA | Long Block Addressing |
| LBA | Large Block Address |
| LBA | Logical Block Addressing |
| LBA | Live Blood Analyst |
| LBAP | Local Biodiversity Action Plan |
| LBB | Low back bending |
| LBBB | Left Bundle Branch Block |
| LBC | Lidocaine Blood Concentration |
| LBCD | Left Border Of Cardiac Dullness |
| LBE | Low Byte Enable |
| LBE | Load Bearing Equipment |
| LBF | Limb Blood Flow |
| LBF | Lactobacillus Bulgaricus Factor |
| LBIR | Low Background Infrared Radiometry |
| LBL | Lawrence Berkeley Laboratory |
| LBM | Lean Body Mass |
| LBN | Logical Block Number |
| LBNPD | Lower Body Negative Pressure Device |
| LBP | Low Back Pain |
| LBP | Low Blood Pressure |
| LBP | Lipopolysaccharide-binding Protein |
| LBPF | Long Bone Or Pelvic Fracture |
| LBRS | Low Background Reference System |
| LBS | Lower Bowel Scrub |
| LBS | Lower Bowel Stimulant |
| LBS | Locational Banking Statistics |
| LBSW | Licensed Baccalaureate Social Worker |
| LBT | Low back tenderness |
| LBT | Listen Before Talk |
| LBV | Lung Blood Volume |
| LBW | Low Birth Weight |
| LBWA | Linn-Benton Women for Agriculture |
| LBWB | Low Birth Weight Baby |
| LBWC | Limb Body Wall Complex |
| LC | Loop Counter |
| LC | Location Counter |