- L... to Lacunar...
- Laennec... to Large...
- Larsen... to Late...
- Latent... to Leaky...
- Learning... to Leloir...
- Lemiere... to Leptomeningopathy...
- Leptospiral... to Leukemia...
- Leukemoid... to Leukopathia...
- Leukopenia... to Liar...
- Libman... to Limitation...
- Limited... to Lipodystrophy...
- Lipofibroma... to Liquefaction...
- Lisping... to Living...
- Lloyd... to Lone...
- Loneliness... to LSD...
- Lucas... to Lutz...
- Luxatio... to Lymphatism...
- Lymphocythemia... to Lyssa...