| Abbreviation | Definition |
|---|---|
| LA | low affinity |
| LAA | left atrial appendage |
| LAA | leukaemia-associated antigen |
| LAA | Local Area Agreement |
| LAA | local authority association |
| LAA | low attenuation area |
| LAC | lactate |
| LAC | lactation |
| LAC | lactic acid |
| LAC | Lactobacillus acidophilus |
| LAC | Lay Advisory Committee |
| LAC | Local Authority Circular |
| LAC | Local Authority Company |
| LAC | lupus anticoagulant |
| LADO | Local Authority Designated Officer |
| LAH | left atrial hypertrophy |
| LAH | Licentiate of Apothecaries Hall |
| LAH | Licentiate of Apothecaries’ Hall |
| LAH | low-affinity heparin |
| LALT | larynx-associated lymphoid tissue in the eye |