16 letters
- photoproductions30
- photorespiration25
- photosensitivity28
- photosensitizers31
- photosensitizing34
- photosynthesized36
- photosynthesizes35
- phototypesetting29
- phrasemongerings30
- phylogenetically34
- physiognomically36
- physiopathologic34
- physiotherapists28
- phytochemistries31
- phytogeographies32
- phytopathologies31
- phytosociologies29
- pictorialization33
- piezoelectricity37
- pinealectomizing39
- pithecanthropine31
- platitudinarians24
- pleasurabilities25
- plethysmographic37
- pleuropneumonias30
- polarizabilities33
- politicalization34
- polycondensation29
- polydispersities26
- polyphyletically37
- polyrhythmically38
- polysyllabically36
- polysynaptically35
- pornographically34
- positivistically30
- possessivenesses24
- postdepositional25
- postencephalitic32
- postexperimental34
- postindependence30
- postmillenarians26
- postpositionally27
- postpresidential25
- postresurrection24
- postsynaptically32
- practicabilities29
- praiseworthiness25
- precancellations29
- precariousnesses24
- precertification29
- precociousnesses27
- predetermination25
- predictabilities27
- preformationists26
- preincorporation27
- prekindergartens28
- premanufacturing34
- premillennialism30
- premillennialist27
- premodifications30
- prenotifications27
- prequalification37
- preregistrations22
- prerevolutionary28
- presentabilities24
- preservabilities27
- preservationists24
- prestidigitation23
- prestidigitators22
- presuppositional28
- pretechnological32
- preventabilities28
- preventivenesses29
- processabilities26
- processibilities26
- procrastinations24
- prodigiousnesses24
- productivenesses29
- professionalisms27
- professionalized34
- professionalizes33
- profitablenesses27
- prognostications26
- programmatically34
- proletarianising24
- proletarianizing33
- pronounceability31
- pronunciamentoes29
- prophylactically37
- propitiousnesses24
- proselytizations32
- prosopographical33
- protectivenesses27
- protrusivenesses25
- prussianizations31
- pseudepigraphies31
- pseudoclassicism31
- pseudoscientific31
- pseudoscientists25
- psychoanalytical34
- psychobiographer36
- psychobiological36
- psychobiologists32
- psychohistorians29
- psychohistorical32
- psycholinguistic34
- psychometrically36
- psychometricians33
- psychopathically38
- psychopathologic37
- psychophysically40
- psychophysicists36
- psychophysiology38
- psychotherapists31
- psychotomimetics35
- pugnaciousnesses28
- pyelonephritides29
- pyrometallurgies29
- quadricentennial34
- quadruplications36
- quantificational35
- quantitativeness32
- quarterfinalists31
- quasicrystalline34
- quasiperiodicity35
- questionableness32
- quintessentially32
- radioautographic28
- radiochemistries25
- radiographically31
- radioimmunoassay27
- radioprotections24
- radiosensitivity24
- radiotelemetries21
- radiotelephonies24
- rambunctiousness29
- rationalizations28
- reaccreditations24
- reafforestations23
- reapportionments27
- reauthorizations29
- rebelliousnesses23
- recapitalization33
- recentralization31
- recertifications26
- rechoreographing31
- reclassification27
- reconcentrations25
- reconceptualized38
- reconceptualizes37
- reconfigurations27
- reconsiderations22
- recontaminations25
- recontextualized39
- recontextualizes38
- recoverabilities27
- rectangularities24
- rectifiabilities26
- redeterminations22
- redistributional23
- reestablishments26
- referentialities21
- reflectivenesses28
- refortifications26
- refractivenesses27
- refractorinesses23
- refrangibilities26
- regionalizations30
- regressivenesses23
- reincorporations24
- reindustrialized30
- reindustrializes29
- reinterpretation21
- reinvestigations24
- relativistically28
- remilitarization30
- remunerativeness26
- renormalizations31
- reorchestrations22
- reorganizational30
- repetitivenesses24
- reprehensibility28
- representational22
- representatively27
- representativity26
- repressibilities23
- repressivenesses24
- reprivatizations33
- requalifications34
- resistlessnesses18
- resocializations30
- resolidification25
- respectabilities26
- respectivenesses27
- respiritualizing33
- responsibilities24
- responsivenesses25
- resurrectionists21
- retinoblastomata24
- retransformation24