| M/10 | tenth molar solution |
|---|---|
| M/100 | hundredth molar solution |
| MES | maintenance electrolyte solution; maximal electroshock; maximal electroshock seizures; myoelectric s... |
| MF | magnetic field; meat free; medium frequency; megafarad; membrane filler; merthiolate-formaldehyde [s... |
| MHBSS | modified Hank balanced salt solution |