Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of MM
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
MM: In medicine, the abbreviation for meningomyelocele (spina bifida), malignant melanoma, and multiple myeloma.
(In lower case letters, mm stands for millimeter.)
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