Words starting with X that are validated

• Xandra — First name – Danish
• xanthate — Noun – English ～ a salt or ester of xanthic acid
• xanthelasma — Noun – English ～ xanthoma of the eyelids; occurs chiefly in the elderly
• xanthemia — Noun – English ～ excess carotene in the blood stream; can cause the skin to turn a pale yellow or red color
• xanthic acid — Noun – English ～ any of a class of unstable organic acids containing sulphur
• xanthine — Noun – English ～ crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
• xanthippe — Noun – Danish ～ arrig, stridslysten kvinde
• Xanthium — Noun – English ～ coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles
• xanthoma — Noun – English ～ a skin problem marked by the development (on the eyelids and neck and back) of irregular yellow nodules; sometimes attributable to disturbances of cholesterol metabolism
• xanthoma disseminatum — Noun – English ～ rare chronic xanthoma of adults in which orange or brownish papules develop on many surfaces of the body
• xanthoma multiplex — Noun – English ～ widespread xanthomas (especially on elbows and knees); often associated with a disorder of lipid metabolism
• xanthomatosis — Noun – English ～ widespread xanthomas (especially on elbows and knees); often associated with a disorder of lipid metabolism
• xanthomonad — Noun – English ～ bacteria producing yellow non-water-soluble pigments; some pathogenic for plants
• Xanthomonas — Noun – English ～ a genus of bacteria similar to Pseudomonas but producing a yellow pigment that is not soluble in water
• Xanthophyceae — Noun – English ～ yellow-green algae
• xanthophyl — Noun – English ～ yellow carotenoid pigments in plants and animal fats and egg yolks
• xanthophyll — Noun – English ～ yellow carotenoid pigments in plants and animal fats and egg yolks
• xanthopsia — Noun – English ～ visual defect in which objects appear to have a yellowish hue; sometimes occurs in cases of jaundice
• Xanthorrhoeaceae — Noun – English ～ one of many subfamilies into which some classification systems subdivide the Liliaceae but not widely accepted
• Xanthorroea — Noun – English ～ grass trees; sometimes placed in family Xanthorrhoeaceae

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