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There are 967 eighteen-letter words containing 2H and 2O

(page 4)

kakorrhaphiophobiakakorrhaphiophobickeeps␣one's␣mouth␣shutKirlian␣photographyknights␣of␣the␣spigotlaughed␣one's␣head␣offlecithotrophicallylipophosphoglycanslithium␣borohydridelithoheterotrophiclithokelyphopedionlived␣in␣the␣shadow␣oflives␣in␣the␣shadow␣oflooking␣the␣other␣waylymphoepitheliomaslymphohematogenouslymphohistocytosislysophosphatidateslysophospholipasesmacrophanerophytesmajor␣seventh␣chordsmake␣the␣road␣shortermalice␣aforethoughtmaster␣of␣the␣schoolsmechanobiochemicalmetallophosphatasemetaphosphoric␣acidmethanochondroitinméthode␣champenoisemethoxycyclohexenemethoxytryptophansmethylcyclohexanolmethylotrophicallymicroheterotrophicmicroneighborhoodsmicroneighbourhoodmicrophanerophytesmicrophotographersmicrophotographingminor␣seventh␣chordsmitochondriopathicmonochlorobiphenylmonohydrochloridesmonohydroxymethanemonophosphokinasesmonophosphorylatedmonophthongisationmonophthongizationmonothiohemiacetalmonothiophosphatesmorphogeographicalmorphohistologicalmorphopathologicalmorphophonemicallymorphophonologicalmorphophonologistsmorphostratigraphyMorton␣and␣Hanthorpemutton-chop␣whiskersnanochromatographynaphthodianthronesnaphtholsulphonatenatural␣philosopherneither␣fish␣nor␣fowlneoechinorhynchidsneoichthyosauriansnephropathogenesisnephropathologicalnephropathologistsneuroarthropathiesneurohistochemicalneuroophthalmology neuro-ophthalmologyneurophilosophicalneurophysiotherapyneuropsychopathiesnoble␣eightfold␣pathno␣free␣lunch␣theoremnonachlorobiphenylnonanthropomorphicnonchromatographicnonencephalopathicnonhistoriographicnon-Hodgkin␣lymphomanonphilosophicallynonphosphopeptidesnonphosphorylatingnonphosphorylationnormophosphataemianormophosphataemicnorthern␣birch␣mouseNorth␣Hertfordshirenorth-northeasterlynorth-northeastwardnorth-northwesterlynorth-northwestwardno␣show␣without␣PunchnucleophosphatasesoctachlorobiphenyloesophagobronchialOld␣English␣SheepdogoligohymenophoreanoligohypomenorrheaOmphalos␣hypothesisone␣hundred␣thousandophthalmologicallyophthalmopathologyophthalmotonometryopisthobranchiatesopisthomonorchiineorange␣sharpshooterorders␣of␣knighthoodorganoheterotrophsorganoheterotrophyorganolithotrophicorganophosphatasesorganophosphonatesOriental␣Shorthairsornithocheiromorphornithogeographersorthopantomographsorthopantomographyorthophasmavirusesorthopsychiatristsorthotypographicalosteoarthropathiesosteochondropathiaosteochondrophytesother␣days,␣other␣waysother␣side␣of␣the␣coinoverchoreographingoverthoughtfulnessoxazaphospholidinepachychoroidopathypachyrhizodontoidspalaeohydrographicpaleoichthyologistparathyroid␣hormonepathomorphogenesispathomorphologicalpathophysiologicalpathophysiologistspathopsychologicalpaved␣the␣road␣to␣hellpaves␣the␣road␣to␣hell

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