Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z x An unknown quantity or unknown value. xacuti A Goan curry with a complex mixture of spices including white poppy seeds and large dried red chilis, usually prepared with chicken or lamb. Xaenorphica A little-known stringed instrument with a keyboard, invented by Carl Leopold Röllig in 1801. Xaidulla A town in Pishan, Hotan prefecture, Xinjiang autonomous region, China. Xaisomboun A province in central Laos. xalam A traditional lutelike string instrument of West Africa. Xalapa A city, the state capital of Veracruz, Mexico. Official name: Xalapa-Enríquez. xaliproden A drug which acts as a 5HT1A agonist, proposed for use in the treatment of several neurodegenerative conditions including Alzheimer's disease. xallarap Variation in a gravitational lensing caused by the orbital motion of the observed object. xalostocite Synonym of rosolite. xalwo A type of halva, a staple of Somali cuisine, made from sugar, corn starch, cardamon powder, nutmeg powder, ghee, and sometimes peanuts. Xamar Mogadishu (the capital city of Somalia). Xamir A small ethnic group of Ethiopia, speaking the Xamtanga language. xamoterol A particular cardiac stimulant drug. XAMPP A cross-platform solution stack consisting of the Apache web server, MariaDB or MySQL database, and Perl and PHP programming languages. Xamtanga A Central Cushitic language spoken in Ethiopia by the Xamir. Xan A Xanax tablet. Xanadu A place full of beauty, happiness and wonder. Xanatos A male given name used in modern fiction. Xanax A brand name for alprazolam. Xanaxed Under the influence of the drug Xanax. xanbie Someone who acts like a zombie after consuming large quantities of Xanax or other benzodiazepines, often in combination with alcohol. xanchromatic Having a yellow colour. XAND XNOR, a logic gate. xandemic A period of time in the mid 2010s associated with widespread abuse of Xanax, an anti-anxiety medication, by teenagers in the United States. Xander A diminutive of the male given name Alexander, from Ancient Greek, of modern usage. Xanderista A fan of the character Xander Harris from the television series Buffy the Vampire Slayer. Xandra A female given name from Ancient Greek of modern usage, a short form of Alexandra. Xandria A female given name, variant of Alexandra. xanned Under the influence of or impaired by Xanax. xanny Xanax. xanol A sodium salicylate preparation used as an antirheumatic. xanomeline A muscarinic acetylcholine receptor agonist with reasonable selectivity for the M1 and M4 subtypes, possibly useful in treating Alzheimer's disease and schizophrenia. xanorphica A kind of musical instrument, resembling a harmonichord and a tetrachordon. Xanrey A commune of Moselle department, France. Xanten A town in North Rhine-Westphalia, Germany. xanthaline Synonym of papaveraldine. xanthamide The amide of xanthic acid. xanthan A polysaccharide, consisting of galactose and mannose residues, produced by the bacterium Xanthomonas campestris xanthanol Synonym of xanthydrol. xanthanolide Any of several glycosides containing xanthan. xanthate Any salt or ester of xanthic acid. xanthatin The sesquiterpenoid xanthanolide (3~{a}~{R},7~{S},8~{a}~{S})-7-methyl-3-methylidene-6-[(~{E})-3-oxobut-1-enyl]-4,7,8,8~{a}-tetrahydro-3~{a}~{H}-cyclohepta[b]furan-2-one present in Xanthium strumarium leaves. xanthation Conversion into a xanthate. xanthaurine The aglycone of quercitrin. Xanthe A female given name from Ancient Greek. xanthein The water-soluble part of the yellow carotenoid pigment present in the cell sap of some plants. xanthelasma A deposit of cholesterol on the eyelid. xanthelasmic Exhibiting or relating to xanthelasma. xanthelasmoidea A disease resembling xanthelasma, which leaves yellowish or brownish patches on the skin. xanthematin A yellow pigment formed by the action of nitric acid on haematin. xanthemia The occurrence of yellow matter in the blood. xanthene Any of a group of tricyclic heterocycles (dibenzopyrans) that are the basis for a range of dyes such as fluorescein and eosin. xanthenic Pertaining to, or derived from, xanthene. xanthenone The compound 9-oxo-xanthene that is the basis of many natural products and insecticides xanthenyl A radical derived from xanthydrol, C₁₃H₁₀O⁺. Xanthi A city in Thrace, northeastern Greece. Xanthian Of the city Xanthos (or Xanthus) in ancient Lycia. xanthic Of a yellowish colour. xanthid Any crab in the Xanthidae. xanthide Any derivative of xanthogen. xanthidylic Relating to xanthidylic acid or its derivatives xanthine Any of a group of alkaloids that include caffeine, theophylline, and theobromine as well as the parent compound, a precursor of uric acid found in many organs of the body. xanthinic Of or relating to xanthine. xanthinine A poorly-characterised material, related to urea and uric acid, that forms yellow salts, and exhibits a blue fluorescence. xanthinol A drug prepared from theophylline, used as a vasodilator. xanthinosin The sesquiterpenoid xanthanolide (3~{a}~{R},7~{S},8~{a}~{S})-7-methyl-3-methylidene-6-(3-oxobutyl)-4,7,8,8~{a}-tetrahydro-3~{a}~{H}-cyclohepta[b]furan-2-one present in Xanthium strumarium leaves xanthinuria An abnormally high level of xanthine in one's urine. xanthinuric Relating to, or exhibiting, xanthinuria. xanthiol A saturated thioxanthene preparation. xanthione The thione analog of xanthine, 9H-xanthene-9-thione xanthiosite A phosphate mineral first discovered in Germany in 1858. Xanthippe An ill-tempered woman. Xanthippic Of or pertaining to Xanthippe (wife of Socrates) xanthism A yellowish colouring of pigments in hair, skin, feathers, etc. xanthitane A yellow fibrous earthy material that is an aluminium titanite. xanthite A variety of vesuvianite found in limestone near Amity, New York. xanthization The action of becoming yellow, typically by the accumulation of hematite. xanthoangelol A chalcone, found in Angelica keiskei, that induces apoptosis. xanthoastrocytoma A normally benign form of astrocytoma. xanthobaccin An antifungal compound produced by certain bacterial strains. xanthobacter Any of the genus Xanthobacter of gram-negative bacteria. xanthoblast A cell that differentiates into a xanthophore. xanthocarpous Having yellow fruits. xanthochroi A division of the human population having fair skin and wavy blond hair. xanthochroia A condition characterized by yellow patches on the skin. xanthochroic pertaining to people or races with light hair and pale complexions xanthochroid Pertaining to the Xanthochroi; having fair hair and a pale complexion. xanthochromatic xanthochromic xanthochrome A yellow pigment. xanthochromia The yellowish appearance of cerebrospinal fluid that accompanies certain conditions, especially subarachnoid hemorrhage. xanthochromic Having a yellow colour xanthochromism Abnormal yellow colouration. xanthochromistic Exhibiting xanthochromism. xanthochroous Yellow‐skinned; of or pertaining to Xanthochroi. xanthochymol An antibacterial compound found in Garcinia xanthochymus. xanthocobalt Synonym of nitritopentamminocobalt. xanthocobaltic Derived from or containing xanthocobalt. xanthocone Synonym of xanthoconite. xanthoconite A mineral containing silver, arsenic, and sulphur. xanthocreatinine The organic compound with chemical formula C₅H₁₀N₄O, related to creatinine. xanthocyanopia Color blindness in which red and green cannot be distinguished. xanthocyanopsia A form of color blindness in which red cannot be distinguished from green, but only blue from yellow. xanthoderm One who is afflicted by xanthoderma. xanthoderma A yellow coloration of the skin. xanthodermic Having yellowish skin. xanthodont A person who has yellow teeth. xanthodontous Having yellow teeth. xanthoepocin An antifungal antibiotic found in Penicillin species. xanthofulvin A complex xanthone related to vinaxanthone. xanthogalenol The chalcone 3'-prenyl-4,2',6'-trihydroxy-4'-methoxychalcone xanthogen Formerly, a hypothetical radical supposed to be characteristic of xanthic acid. xanthogenamide Synonym of xanthamide. xanthogenate xanthate xanthogenic Producing a yellow colour xanthogranuloma A form of histiocytosis with yellowish lesions. xanthogranulomatous Relating to xanthogranulomata. xanthohumol A prenylated chalconoid from hops and beer, with a range of biological properties and potential therapeutic utility. xantholeucoblast A leucoblast associated with xanthophores. xantholeucophore A leucophore arising from a xanthophore. xantholiniform Pertaining or relating to the genus Xantholinus. xantholysin Any of a group of antimicrobial and antifungal lipopeptide present in Pseudomonas xanthoma A small, yellow nodule, rich in cholesterol and other lipids, that occurs in the skin, often near a joint xanthomatosis A disorder in which excess lipid accumulates in the body and produces xanthomas xanthomatotic Of or pertaining to xanthomatosis. xanthomatous Of or relating to xanthoma or xanthomatosis. xanthomegnin A quinone pigment obtained from a fungus. Xanthomelanoi The xanthomelanous division of the human population. xanthomelanous Having yellow, brown, or olive skin and black hair. xanthometer A graduated scale of colors from blue to yellow, white, or green, for determining the color of ocean or lake water. xanthommatin A yellow ommochrome found in the wings of lepidoptera. xanthomonad Any of the genus Xanthomonas of proteobacteria. xanthomonadin Any of a class of yellow pigments present in the protobacterium Xanthomonas. xanthomous Of or pertaining to a xanthoma. xanthomyeloma A lipid-filled myeloma associated primarily with tendon sheaths. xanthone An aromatic ketone, 9-oxo-xanthene, that is used as an insecticide. xanthonoid A phenolic compound having a xanthone backbone; many derivatives of this compound that occur in nature, and are biologically active xanthonoxypropanolamine Any propanolamine derived from a xanthon; they show antihypertensive activity xanthonychid Any snail in the family Xanthonychidae. xanthopathy Xanthochromia. xanthophane The yellow form of chromophane. xanthophobia Fear of the colour yellow. xanthophore A xanthochrome-containing chromatophore, frequently a lipophore. xanthophycean Relating to Xanthophyceae xanthophyl Dated spelling of xanthophyll. xanthophyll Any of various hydroxy, carbonyl or carboxylic acid derivatives of carotenes. xanthophyllic Of or pertaining to xanthophyll. xanthophyllite A synonym of clintonite. The International Mineralogical Association's Commission on New Minerals, Nomenclature and Classification (CNMNC) recommends using clintonite as a replacement in all cases. xanthophyllous Of or relating to xanthophyll. xanthophyte Any yellow-green alga (of the class Xanthophyceae). xanthopia A visual disorder in which things appear yellowish.