| Metformin | metformin |
| Meteorit | meteorite |
| eiförmig | egg-shaped oval |
| netzförmig | netlike reticular reticulate retiform |
| Ametrin | ametrine |
| Metzgerin | slaughterer |
| Metzlerin | slaughterer |
| Meteor | meteor |
| Methionin | methionine |
| Methodik | methodology method |
| Metonymie | metonymy |
| Metrik | metric |
| Weltformel | theory of everything |
| Tatform | active |
| Zeitform | tense |
| Abformen | molding |
| Formen | molding |
| formen | form shape model sculpt sculpture |
| O-förmig | O-shaped |
| Reform- | reformist |