| Nukleus | (cell) nucleus cytoblast nucleus |
| Nuklease | nuclease |
| Nukleon | nucleon |
| nuklear | nuclear |
| Nukleosom | nucleosome |
| Nuklid | nuclide |
| Küklein | chick |
| Klerus | clergy |
| Malleus | hammer |
| Peleus | Peleus |
| Pileus | pileus |
| Nukleotid | nucleotide |
| Euklid | Euclid |
| Gaukler | bateleur |
| Sauklaue | scrawl scribble |
| Asklepius | Asclepius |
| Klecks | blot blob |
| Klerf | Clervaux |
| Hakler | hooker |
| Klebe | adhesive |