11 letters
- ichthyology25
- ichthyosaur21
- iconoclasms22
- iconoclasts19
- iconography24
- impractical24
- isomorphous20
- kymographic30
- lachrymator22
- lacrimators18
- laparoscope21
- laparoscopy23
- lithographs21
- lithography23
- logarithmic22
- logographic24
- logomachies22
- lophophores22
- lymphocytic30
- lymphograms27
- machinators20
- macrofossil21
- macrophages24
- macrophagic27
- macrophytes24
- macrophytic27
- macroscales21
- macroscopic26
- magistrally20
- malapropism24
- malapropist21
- malariology20
- malpractice24
- maraschinos20
- marshalcies20
- marshalship22
- masochistic22
- masticators17
- masticatory19
- mayoralties17
- mesotrophic22
- metaphysics24
- microcosmos23
- micrographs24
- microphages24
- microphylls26
- microscales21
- microscopes23
- misanthropy22
- miscatalogs20
- monarchical24
- monarchists20
- monochasial21
- monocrystal21
- monogastric20
- monographic25
- monologists18
- monopolists19
- morphactins23
- morphologic25
- motorcycles23
- motorically21
- moustachios20
- mycological26
- mycologists22
- mycophagies26
- mycophagist26
- mycophagous27
- mycoplasmas26
- myelopathic25
- mythography27
- mythologers21
- mythologies21
- mythologist21
- mythopoeias21
- nasogastric17
- nomographic25
- nyctalopias21
- oarsmanship20
- ochlocratic23
- oncologists18
- ophthalmias22
- ornithology19
- orthoclases17
- orthography22
- orthoscopic22
- oscillators16
- oscillatory18
- oscillogram21
- osmotically21
- paleography24
- pantographs22
- pantropical22
- paralogisms20
- paraplegics23
- paratyphoid22
- parfocality23
- parochially23
- pastoralism18
- pastoralist15
- pastorships19
- pathologies19
- pathologist19
- patronymics23
- petroglyphs24
- phagocytose23
- pharmacists22
- philosopher22
- philosophes22
- philosophic25
- phlogistons20
- phlogopites22
- phonogramic25
- phonographs24
- phonography26
- phonologist20
- phosphatase21
- phosphorite21
- phosphorous22
- phosphoryls24
- photocopier22
- photocopies22
- photographs23
- photography25
- photomosaic22
- photomurals21
- photophases21
- photophobia24
- photophobic27
- photophores21
- phototropic22
- phraseology21
- phycologies24
- phycologist24
- physicalism25
- physicalist22
- physiologic24
- phytochrome26
- piccoloists21
- pictographs24
- pictography26
- piscatorial18
- plagiarisms20
- plagiarists17
- planography25
- plantocracy24
- plasmolytic24
- playactings23
- playwrights24
- pleochroism23
- pleomorphic26
- plyometrics23
- polariscope21
- polychotomy27
- polychromes25
- polygamists22
- polyglotism23
- polygraphic27
- polyhistors19
- polymathies22
- polymorphic28
- polyphagias24
- polyphagies24
- polyphagous25
- polyrhythms26
- polytheisms22
- pomological24
- pomologists20
- postclassic21
- postcranial19
- postglacial21
- postholiday20
- postmarital18
- postprimary22
- postvocalic25
- practicably26
- practically24
- pragmatical23
- pragmatisms22
- pragmatists19
- primatology22
- procephalic26
- proctologic23
- proctorship22
- prognathism22
- prognostics20
- promotional19
- propagation20
- propagators19
- prophetical23
- prophylaxis29
- proplastids19
- prosaically21
- proselytism20
- proteolysis17
- prothalamia20
- prothoracic22
- protocoling21
- protogalaxy26
- protopathic22