WORDS BY FIRST LETTER AND LENGTH

13 Letter Words Starting With X

Explore 80 English words that start with X and contain exactly 13 letters. Common examples include xanthoangelol, xanthocarpous, xanthochroism, xanthochromia, xanthochromic.

Browse Other X Word Lengths

13-Letter X Words by Ending Letter

All 80 13-Letter Words Starting With X

xanthoangelol(organic chemistry) A chalcone, found in Angelica keiskei, that induces apoptosis.xanthocarpous(botany) Having yellow fruits.xanthochroismAlternative form of xanthochromism.xanthochromia(medicine) The yellowish appearance of cerebrospinal fluid that accompanies certain conditions, especially subarachnoid hemorrhage.xanthochromicHaving a yellow colourxanthochroousYellow‐skinned; of or pertaining to Xanthochroi.xanthodontous(rare) Having yellow teeth.xanthogalenol(organic chemistry) The chalcone 3'-prenyl-4,2',6'-trihydroxy-4'-methoxychalconexanthokyanopyAlternative form of xanthocyanopia.xanthomatosis(medicine) A disorder in which excess lipid accumulates in the body and produces xanthomasxanthomatoticOf or pertaining to xanthomatosis.xanthommatineAlternative form of xanthommatin.xanthomonadinAny of a class of yellow pigments present in the protobacterium Xanthomonas.xanthomyeloma(pathology, oncology) A lipid-filled myeloma associated primarily with tendon sheaths.xanthophyceanRelating to XanthophyceaexanthophyllicOf or pertaining to xanthophyll.xanthopicrite(organic chemistry, archaic) A bitter crystalline alkaloid extracted from plants of family Xanthoxylaceae.xanthoplanineThe alkaloid (6aS)-1,2,10-trimethoxy-6,6-dimethyl-5,6,6a,7-tetrahydro-4H-dibenzo[de,g]quinolin-6-ium-9-olxanthoproteicOf or pertaining to xanthoproteic acid or xanthoproteins.xanthoproteinA protein formed when xanthoproteic acid contacts epithelial cells, indicative of inadequate safety precautions when handling nitric acid.xanthopterineAlternative form of xanthopterin.xanthopuccine(organic chemistry) An alkaloid resembling berberine, found in the root of the yellow puccoon (Hydrastis canadensis).xanthorhamnin(organic chemistry) A chemical compound found in buckthorn berries (Rhamnus cathartica).xanthorrhizol(organic chemistry-) A sesquiterpenoid, present in Curcuma xanthorrhiza, thought to show anticancer and antimicrobial activity.xanthoxyletin(organic chemistry) A coumarin, 5-methoxy-2,2-dimethylpyrano[3,2-g]chromen-8-one, found in prickly ash (Zanthoxylum americanum)xantopurpurin(organic chemistry) 1,3-dihydroxyanthraquinonexenoantigenicRelating to xenoantigensxenobiologistA biologist who works in xenobiology.xenochemistry(rare, science fiction) The study of extraterrestrial chemistry.xenochimaericAlternative form of xenochimeric.xenodiagnosis(medicine) The diagnosis of an infectious disease (especially of trypanosomiasis) by exposure to a vector of that disease, incubating the vector and examining it for the presence of the disease.xenodiversity(ecology) Diversity due to the presence of "foreign" organisms.xenogeography(rare, science fiction) The study of exoplanet geography.xenoinfectionInfection of one species by an organism that normally infects another.xenolecticity(linguistics) The property of being a xenolect.xenomorphosis(film studies) A form of cognitive dissonance produced by stimulation that pulls in two opposing directions, such as simultaneous attraction and revulsion.xenomythology(science fiction, rare) The study of myths and legends of alien species.xenoparasiticBeing or relating to a xenoparasite.xenopathology(science fiction, rare) The study of the nature of disease and its causes, processes, development, and consequences among different sentient species of the galaxy.xenoperfusionPerfusion with blood from another individual.xenophthalmia(medicine) Ophthalmia caused by foreign matter in the eye.xenophyophoreA giant unicellular organism found in deep parts of the ocean.xenorejectionRejection of a xenotransplant.xenosociology(science fiction, rare) The study of alien sociology.xenotolerance(immunology) Tolerance to an antigen from another species.xenotopicallyIn a xenotopic mannerxenotransfuse(transitive, rare) To subject to xenotransfusion.xenotrichulidAny gastrotrich of the family Xenotrichulidae.xenoturbellanAny bilaterian of the genus Xenoturbella.xenoturbellid(zoology) any primitive bilaterian animal in the family Xenoturbellidae.xenotyphlopidAny snake of the family XenotyphlopidaexenozoologistOne who studies xenozoology.xerocomorubin(organic chemistry) A pigment found in Boletales fungi; the oxidized form of isoxerocomic acid.xerodermatousExhibiting or relating to xeroderma.xerohalophyteA halophyte that thrives in very dry conditions.xeromammogramAn image produced by means of xeromammography.xeromesophyte(biology) A mesophyte adapted to thrive in a very dry environment.xerophthalmia(ophthalmology) A condition due to a deficiency of vitamin A where the conjunctiva and cornea become dry. The condition starts with conjunctival xerosis and night blindness and progresses to corneal xerosis and, later, a severe condition called keratomalacia.xerophthalmicOf or pertaining to xerophthalmia.xerophthalmosAlternative form of xerophthalmia.xerophthalmusAlternative form of xerophthalmia.xeroradiogramAn image produced by means of xeroradiography.xerotolerance(biology) Ability to thrive in a dry environment.xestospongineAlternative form of xestospongin.xiangjiangite(mineralogy) A yellow mineral composed of aluminium, hydrogen, iron, oxygen, phosphorus, sulphur, and uranium.xiebaisaponinA particular steroid glycoside.xilingsaponinA particular steroid glycoside.xiphiplastralRelating to a xiphiplastron.xiphiplastronThe posterior, or fourth lateral plate in the plastron of a turtle.xiphophyllous(botany) Having sword-shaped leavesxochinacaztliThe earflower, Cymbopetalum penduliflorum, sometimes used by the Aztecs to flavour cocoa.xocomecatlite(mineralogy) A telluride mineral found in cracks in altered rhyolite.xylanesterase(biochemistry) An esterase that catalyses the hydrolysis of xylansxylochemistry(chemistry, rare) The chemistry of wood.xyloglucanase(biochemistry) Any enzyme that breaks down xyloglucans.xyloglucosideA glucoside of xylose.xylonolactoneAny lactone derived from a xylonic acid.xylophonelikeResembling or characteristic of a xylophone.xylopyranosyl(organic chemistry, especially in combination) A univalent radical derived from xylopyranose.xylotomicallyBy means of xylotomy

Use These Words

Open any word for its full definition, examples, synonyms, antonyms, and related vocabulary. Every item is an existing dictionary entry; phrases, hyphenated terms, and malformed headwords are excluded.