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There are 48 eighteen-letter words containing 2I, O, 2R, T and X

auxiliary␣power␣unitBurali-Forti␣paradoxcigar␣box␣guitaristscopy-on-write␣proxiesdextrotartaric␣aciddihydroxypteridinedinitrogen␣trioxideelectroauxiliariesexterior␣derivativeexterritorializingextrahepatobiliaryextramitochondrialextraterritoriallyhexachloroiridateshydroperoxidationshydroxybutyric␣acidhydroxyderivativeshydroxymaprotilinehydroxystearic␣acidhyperthyroxinaemiahyperthyroxinaemichyperthyroxinemiasinferiority␣complexMissouri␣Fox␣Trottermixed-interval␣chordMorris␣the␣Explaineroverapproximations over-approximationsProxima␣Centauriansproximate␣principleproximoposteriorlyred-billed␣leiothrixreprotoxicologicalrhombitrihexagonalruthenium␣tetroxidescimitar-horned␣oryxsuperiority␣complextetracarbon␣dioxidetransition␣matrixestricarboxylic␣acidstrihexosylceramidetrihydroxystilbenetrimedoxime␣bromideunderapproximating under-approximatingunderapproximation under-approximationxerothermic␣periods

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 152 words
  • Spanish Wiktionary: 3 words
  • Italian Wiktionary: no word
  • German Wiktionary: 11 words
  • Portuguese Wiktionary: 1 word
  • Dutch Wiktionary: 2 words

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