| Defektelektron | electron hole |
| defektieren | defect |
| Valenzelektron | valence electron |
| Deflektor | deflector |
| Reflektion | reflection |
| Elektron | electron electrum |
| delektieren | disport |
| detektieren | detect |
| Defenestration | defenestration |
| Defibrillation | defibrillation |
| Deflation | deflation |
| Defäkation | defecation |
| defäkieren | defecate |
| Desinfektion | disinfection |
| effektuieren | effect make accomplish effectuate put into practice realize deliver dispatch send out |
| Dejektion | dejecta |
| Elektro- | electro- |
| elektro- | electro- |
| Plektron | plectrum |
| Reflektor | reflector |