Definition of MM
MM: In medicine, the abbreviation for meningomyelocele (spina bifida), malignant melanoma, and multiple myeloma.
(In lower case letters, mm stands for millimeter.)
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=4412
Last Editorial Review: 10/9/2012
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