- mega-voltage linear accelerator
- megestrol
- meiosis
- Melan-A protein
- melanin
- melanocortin 1 receptor
- melanocyte
- melanoma
- Melanoma Antigen Recognized by T cells 1
- melanoma in situ
- melanoma vaccine
- melanotropin receptor
- melatonin
- membrane
- MEN syndrome
- MEN-10755
- MEN1 syndrome
- meningeal
- meningeal carcinomatosis
- meningeal leukemia
- meningeal metastasis
- meningeal syndrome
- meninges
- meningioma
- meningitis