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There are 52 twenty-one-letter words containing B, C, H, I, O, R and U

algebraic␣number␣theoryarc-hyperbolic␣functionarmoured␣combat␣vehicleautobiographicalizingbehavioural␣psychologybiohydrometallurgicalbrachiocephalic␣trunksbutyrylcholinesterasecalcium␣channel␣blockercarbonaceous␣chondritecarbothermal␣reductionchannel␣of␣distributionchi-square␣distributionchloromercuribenzoatecompact␣neighbourhoodscounterestablishmentsDistrict␣of␣Guysboroughdriven␣the␣porcelain␣busdrives␣the␣porcelain␣busEdgeworth-Kuiper␣objecteverybody␣and␣his␣cousinfibrochondroinductivegreat␣cubicuboctahedraheliosynchronous␣orbitheterobasidiomycetousheterobifunctionalityhighly␣composite␣numberhydrostatic␣equilibriahyperbolic␣quaternionsleaves␣much␣to␣be␣desiredleucoerythroblastosisLyminster␣and␣CrossbushneurobiopsychologicalneuropsychobiologicalNorth␣American␣wheel␣bugorthographic␣neighbourpharyngotympanic␣tubesPolish␣People's␣RepublicPotter-Bucky␣diaphragmspublic-key␣cryptography public␣key␣cryptographypunctured␣neighborhoodRepublic␣of␣South␣Africarisk␣it␣to␣get␣the␣biscuitSecond␣Spanish␣RepublicSerbian␣Orthodox␣Churchskeleton␣in␣the␣cupboardsmall␣cubicuboctahedraSteinbach's␣crown␣cactussubstoichiometricallysupermassive␣black␣holeWitherspoon-excludable

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 98 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: 1 word
  • German Wiktionary: 92 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 20 words

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