| M/100 | hundredth molar solution |
|---|---|
| molc | molar concentration |
| MS | Maffuci syndrome; maladjustment score; mandibular series; Marfan syndrome; Marie-Strumpell [syndrome... |
| A2 P2 | aortic second sound; pulmonary second sound |
| cps | counts per second; cycles per second |