- L... to Lacunar...
- Laennec... to Lardaceous...
- Large... to Lassitude...
- Late... to Leakage...
- Leaky... to Leishmanoid...
- Leloir... to Leptomeningitis...
- Leptomeningopathy... to Leukasmus...
- Leukemia... to Leukomelanopathy...
- Leukonychia... to LGSIL...
- Li... to Limb...
- Limit... to Lipochrome...
- Lipodystrophia... to Lipschütz...
- Lipuria... to Liver...
- Livida... to Löfgren...
- Loiasis... to Lower...
- Lown... to Luteoma...
- Lutz... to Lymphangitis...
- Lymphocytic... to Lyssa...