| Methacrolein | methacrolein |
| Acrolein | acrolein |
| Methadon | methadone |
| Metabolit | metabolite |
| Meteorologin | meteorologist |
| Methanol | methanol |
| Methionin | methionine |
| metallen | metallic |
| Metadaten | metadata |
| Metalloprotein | metalloprotein |
| Metallurgin | metallurgist |
| Metformin | metformin |
| Methodistin | Methodist |
| Methusalem | Methuselah |
| Metzgerin | slaughterer |
| Metzlerin | slaughterer |
| Metaller | Metaller |
| Metalloid | metalloid |
| Metallring | metal ring |
| Metaphorik | imagery |