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There are 158 eighteen-letter words containing H, O, R, T and X

acetoxycholesterolaminohydroxylationantibioprophylaxisantiochratoxigenicbaritone␣saxophonesBhartrhari's␣paradoxbox␣and␣whisker␣plotsbox␣and␣whiskers␣plotcamphocarboxylatescarboxymethylationcarboxyprothrombinchloroethoxyaminescounterorthodoxiesdeoxyerythronolidedeoxyribothymidinedeoxytaurocholatesdeoxytylophorininedesmethoxycurcumindextroamphetaminesdextropropoxyphenedihydroxyanthronesdihydroxybenzoatesdihydroxypteridineelectroaxonographyentorhinal␣cortexesexchanged␣contractsexchanges␣contractsexeleutherostomizeexoatmosphericallyexophthalmic␣goiterexophthalmic␣goitreexponential␣growthsextrachromosomallyextrahematopoieticextrahepatobiliaryextrahepatosplenicextramitochondrialextramorphologicalextraphilosophicalextraphysiologicalextrathermodynamicFexhe-le-Haut-Clocherfluoroethoxymethylgrandfather␣paradoxhad␣sexual␣relationshalohydroxylationshas␣sexual␣relationshematopneumothoraxheterocomplexationhexachloroiridateshexachlorothallatehexadeuterobenzenehexafluoroacetoneshexafluorosilicatehexafluorotitanatehexagalacturonateshexakisoctahedronshexakistetrahedronhexaphosphorylatedhexatetracontanoichexosyltransferasehigh-context␣culture high␣context␣culturehomogeneous␣mixturehydroalkoxylationshydrocarboxylationhydrodeoxygenatinghydrodeoxygenationhydroperoxidationshydroperoxylationshydrophenoxylationhydrostatic␣paradoxhydroxyadamantaneshydroxyalkylationshydroxyamphetaminehydroxybutyric␣acidhydroxycarotenoidshydroxycholesterolhydroxycyclizationhydroxyderivativeshydroxyhalolactonehydroxyiodolactonehydroxylbastnäsitehydroxymaprotilinehydroxymetaboliteshydroxymethylationhydroxynaphthalenehydroxyphosphonatehydroxystearic␣acidhydroxytryptamineshydroxytryptophanshydroxywithanolidehypersexualisationhypersexualizationhyperthyroxinaemiahyperthyroxinaemichyperthyroxinemiasichthyosarcotoxinsichthyosarcotoxismLaxton␣and␣Moorhouselithium␣oxybutyratemetalexicographersmethoxyeleutherinsmethoxytryptophansmint␣pars␣of␣exchangemitochondriotoxinsmixed-interval␣chordmonohydroxylationsmonohydroxymethaneMorris␣the␣Explainernanohydroxyapatiteneurosporaxanthinenonheterosexualitynorthward␣equinoxesOriental␣Orthodoxesoxydehydrogenationoxygen␣catastrophesoxyhydroxysulfatesperfluorohexanoateperoxodiphosphatespharmacotoxicologyphotic␣sneeze␣reflexphotoperoxidationspotassium␣hydroxideproofs␣by␣exhaustionradiculoplexopathyred-billed␣leiothrixrhombitrihexagonalruns␣for␣the␣exerciseruthenium␣tetroxideSaxe-Coburg␣and␣Gothascimitar-horned␣oryxsee␣you␣next␣Thursdaysexual␣dichromatismshort␣exact␣sequencesoprano␣saxophonistsouthward␣equinoxessympathoexcitatorytaurodeoxycholatestetrahexylammoniumtetrahydroxyboratetetrakishexahedron tetrakis␣hexahedrontext␣door␣neighboursthiocarboxylic␣acidthought␣experimentsthromboprophylaxesthromboprophylaxis

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 99 words
  • Spanish Wiktionary: 1 word
  • Italian Wiktionary: no word
  • German Wiktionary: 22 words
  • Portuguese Wiktionary: 3 words
  • Dutch Wiktionary: 5 words

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