xanthomata23 xenobiotic24 xenogamies23 xenogeneic24 xenogenies21 xenografts23 xenolithic24 xenophiles24 xenophobes26 xenophobia26 xenophobic29 xenotropic24 xerography26 xerophytes24 xerophytic27 xylographs27 xylography29 xylophones26 xylotomies23