| m2 | square meter |
|---|---|
| mm2 | square millimeter |
| MN/m2 | meganewtons per square meter |
| MS | Maffuci syndrome; maladjustment score; mandibular series; Marfan syndrome; Marie-Strumpell [syndrome... |
| MSD | material safety data; mean square deviation; mild sickle cell disease; most significant digit; multi... |