- X-axis Noun Adj
- X-factor Noun Pnoun
- X-ray Noun Verb Adj
- Xanthate Noun Adj Verb
- Xanthating Noun
- Xanthator Noun Adj
- Xanthein Noun
- Xanthelasma Noun
- Xanthelasmatosis Noun
- Xanthene Noun Adj
- Xanthenyl Adj Noun
- Xanthine Noun Adj
- Xanthinuria Noun
- Xanthippe Noun Pnoun
- Xanthochroism Noun
- Xanthochromia Noun
- Xanthoconite Noun Adj
- Xanthoderma Noun
- Xanthogen Noun
- Xanthogenate Noun Verb Adj
- Xanthogenyl Noun Adj
- Xanthoma Noun Adj
- Xanthomatosis Noun Adj
- Xanthomycin Noun
- Xanthone Noun Adj
- Xanthopathy Noun
- Xanthophyll Noun Adj
- Xanthophyllite Noun Adj
- Xanthoprotein Noun
- Xanthopsia Noun
- Xanthopterin Noun Adj
- Xanthopurpurin Noun Adj
- Xanthorhamnin Noun Adj
- Xanthosiderite Noun Adj
- Xanthosine Noun Adj
- Xanthosis Noun
- Xanthotoxin Noun Adj
- Xanthydrol Noun Adj
- Xantogenate Noun Verb Adj
- Xebec Noun Adj
- Xenia Noun
- Xenical Noun
- Xenoantibody Noun Adj
- Xenoantigen Noun Adj
- Xenoantiserum Noun
- Xenobiology Noun
- Xenobiotic Adj Noun
- Xenocryst Noun Adj
- Xenodiagnosis Noun
- Xenodiagnostic Adj Noun
- Xenodochium Noun
- Xenogamy Noun
- Xenogenesis Noun
- Xenogenicity Noun
- Xenoglossy Noun Adj
- Xenograft Noun Adj Verb
- Xenografting Noun Pres. Participle
- Xenography Noun Adj
- Xenolite Noun
- Xenolith Noun Adj