Schlagwort (GND)
| Wurzelschwamm [1] |
| Wüste [1] |
| X-Chromosom [1] |
| Xenon [1] |
| Xenonatom [1] |
| Xishuangbanna [1] |
| XML [5] |
| XSL [2] |
| Yasuní-ITT-Initiative [1] |
| Yeast-Two-Hybrid-System [1] |
| Yersinia enterocolitica [1] |
| Zadek, Ignaz [1] |
| Zahlenreihe [1] |
| Zahlensymbolik [1] |
| Zahlenverständnis [1] |
| Zahlungsbereitschaft [3] |
| Zähigkeit [1] |
| Zeaxanthin [1] |
| Zebu [3] |
| Zeichnung [1] |