15 letters
- polymerizations34
- polyunsaturated25
- popularizations33
- postdevaluation26
- postinoculation25
- postirradiation20
- postoperatively28
- postpollination25
- poststimulation24
- poststimulatory25
- postvaccination30
- precancellation28
- precipitateness25
- predestinations21
- predevaluations26
- prefabrications28
- prefiguratively31
- preformationist25
- preimplantation27
- prematurenesses23
- premodification29
- prenotification26
- preponderations24
- prepublications30
- preregistration21
- preservationist23
- pressurizations29
- prestidigitator21
- preterminations23
- preternaturally24
- prettifications25
- prioritizations28
- problematically32
- procrastinating25
- procrastination23
- procrastinators22
- prognosticating27
- prognostication25
- prognosticative28
- prognosticators24
- pronunciational26
- proportionately25
- proportionating25
- proselytization31
- prostatectomies24
- provocativeness30
- proximatenesses29
- prussianization30
- pseudocoelomate27
- psychiatrically32
- psychopathology35
- quadruplicating37
- quadruplication35
- quantifications33
- quatercentenary32
- quintuplicating37
- radicalizations30
- rationalization27
- reacclimatizing37
- reaccreditation23
- reafforestation22
- reappropriating27
- reauthorization28
- recanalizations30
- recapitulations24
- recertification25
- rechromatograph30
- recodifications26
- recolonizations30
- recombinational27
- recommendations27
- reconcentrating26
- reconcentration24
- reconciliations24
- reconfiguration26
- reconfirmations26
- reconsecrations23
- reconsideration21
- reconsolidating24
- recontaminating26
- recontamination24
- redetermination21
- redintegrations20
- redistillations19
- reduplicatively31
- refortification25
- regionalization29
- regularizations29
- rehabilitations22
- reimplantations24
- reincorporating25
- reincorporation23
- reinstallations19
- reinvestigating25
- reinvestigation23
- reinvigorations23
- rematerializing31
- remobilizations32
- remonetizations29
- remonstratively26
- renationalizing30
- renormalization30
- reorchestrating23
- reorchestration21
- reorganizations28
- repeatabilities22
- repolarizations29
- representations20
- representatives23
- repristinations20
- reprivatization32
- repudiationists21
- requalification33
- reregistrations18
- reservationists20
- resocialization29
- resystematizing32
- retrogradations19
- revalorizations30
- revisualization31
- revitalizations30
- revivifications30
- rheumatologists24
- rigidifications25
- romanticization32
- sanctifications26
- saponifications26
- schematizations33
- sclerotizations29
- secularizations30
- securitizations29
- segregationists20
- sensationalised19
- sensationalises18
- sensationalisms21
- sensationalists18
- sensationalized28
- sensationalizes27
- sensualizations28
- sesquicarbonate32
- silicifications26
- simplifications29
- solidifications24
- solubilizations31
- somnambulations28
- sophisticatedly27
- sophistications24
- specialisations23
- specializations32
- spermatogeneses24
- spermatogenesis24
- stadtholderates20
- standardization28
- statelessnesses17
- stigmatizations30
- stratifications22
- stratovolcanoes24
- stultifications24
- subcategorizing36
- subinfeudations26
- suboptimization35
- subordinateness22
- suborganization32
- subproletariats23
- substantiations21
- suburbanization34
- subvocalization37
- superannuations23
- superbureaucrat27
- superelevations25
- supererogations22
- superlativeness25
- supernaturalism25
- supernaturalist22
- superovulations26
- superpatriotism25
- superphosphates29
- supersaturating23
- supersaturation21
- superstimulated25
- superstimulates24
- supplementation28
- syllabification29
- symmetrizations33
- sympathectomies31
- sympathetically32
- sympathomimetic34
- symptomatically33
- symptomatologic32
- synchronisation25
- synchronization34
- systematization30
- talkativenesses25
- tarsometatarsus19
- tatterdemalions21
- temperatenesses22
- tentativenesses21
- teratocarcinoma25
- tergiversations22
- tetragrammatons24