| LSF | linear spread function; lymphocyte-stimulating factor |
|---|---|
| LSH | lutein-stimulating hormone; lymphocyte-stimulating hormone |
| LSM | late systolic murmur; lymphocyte separation medium; lysergic acid morpholide |
| LSP | left sacroposterior [fetal position]; linguistic string project; liver-specific protein; lymphocyte-... |
| LTF | lactotransferrin; lipotropic factor; lymphocyte-transforming factor |