| LICA | left internal carotid artery |
|---|---|
| LICM | left intercostal margin |
| LicMed | Licentiate in Medicine |
| LICS | left intercostal space |
| LID | large intraluminal density; late immunoglobulin deficiency; lymphocytic infiltrative disease |
| LIF | laser-induced fluorescence; left iliac fossa; left index finger; leukemia-inhibiting factor; leukocyte inhibitory factor; leukocytosis-inducing factor |
| LIFE | lung imaging fluorescence endoscope |
| LIFO | last in, first out |
| LIFR | leukemia inhibitory factor receptor |
| LIFT | lymphocyte immunofluorescence test |