11 letters
- percolators18
- pericardial19
- pericranial19
- perinatally19
- periodicals19
- periodicity20
- periodontal17
- perionychia22
- perithecial20
- petrodollar17
- petrography23
- petrologies17
- phagocytize32
- phagocytose23
- phallically25
- pharisaical20
- philanderer19
- philatelies18
- philologies20
- philologist20
- photoreduce21
- phraseology21
- phycologies24
- phycologist24
- phylloclade25
- phylloxerae27
- physiologic24
- pictography26
- pictorially21
- pigeonholed21
- pigeonholer20
- pigheadedly23
- piratically21
- piscatorial18
- placability24
- placatingly24
- placeholder22
- plagiarised18
- plagiarized27
- plagiarizer26
- plagioclase21
- planetoidal18
- planetology21
- plantigrade19
- plantocracy24
- plastically22
- platyrrhine20
- pleiotropic21
- polarimeter18
- polarimetry20
- polemically25
- politically22
- polyalcohol24
- polycentric24
- polychaetes22
- polychromed26
- polygenetic23
- polygrapher24
- polygraphic27
- polytechnic26
- porphyritic24
- postcollege21
- posteriorly17
- postglacial21
- postholiday20
- practicable24
- practicably26
- practically24
- praelecting21
- pragmatical23
- preachified23
- preachingly25
- preallotted17
- prearranged18
- prebiologic23
- prechilling24
- preclearing21
- preclinical23
- precocities20
- precolonial20
- precritical21
- predacities18
- prediabetic21
- predicating21
- predication19
- predicative22
- predicatory20
- predictable22
- predictably24
- predoctoral19
- predrilling20
- preelectric21
- prehistoric19
- preliterary17
- premarriage19
- preordering18
- preparatory19
- prerogative20
- preschooler20
- prevaricate21
- primatology22
- procaryotes19
- procephalic26
- procercoids21
- procreating20
- procreation18
- procreative21
- procreators17
- proctologic23
- prodigality20
- profiterole18
- prohibitory21
- prokaryotic23
- proletarian16
- proletariat15
- proliferate18
- prolificacy26
- proofreader18
- prophetical23
- proprietary19
- prosaically21
- protectoral18
- proteolytic20
- prothalamia20
- prothoraces19
- prothoracic22
- protocolled20
- protogalaxy26
- protractile18
- psychedelia23
- psychedelic26
- psychiatric24
- psychologic27
- pteridology20
- pterodactyl21
- purgatorial18
- pyramidical24
- pyrargyrite20
- pyrethroids19
- pyroclastic23
- pyrogallols21
- pyrotechnic25
- racetracker21
- radiational14
- radioactive19
- radiographs19
- radiography21
- radiolarian14
- radiologies15
- radiologist15
- radiometric18
- radiotracer15
- railroaders13
- railroading16
- reaccepting23
- reaccredits18
- reactionary17
- readability18
- reallocated17
- reallocates16
- realpolitik20
- recalculate20
- recalibrate18
- recarpeting20
- rechartered17
- reciprocals21
- reciprocate20
- reciprocity22
- recirculate19
- recollected20
- reconditely19
- recordation16
- rectilinear16
- redactional17
- redecorator15
- redeploying21
- redirecting18
- redirection16
- reduplicate20
- rehydrating19
- rehydration17
- relocatable19
- renographic22
- reoperating17
- reoperation15
- repatriated15
- replicating21
- replication19
- replicative22
- replicators18
- repolarized25
- reportorial15
- reproachers19
- reproaching22
- reprobatory19
- reprogramed20
- reprography23
- reradiating15
- reradiation13
- rerecording18