13 letters
- formulaically28
- formularizers30
- formularizing33
- galactorrheas21
- galactosamine23
- galactosemias22
- galactosidase20
- gallowglasses23
- gastrulations18
- gelandesprung25
- gesticulating23
- gesticulation21
- gesticulative24
- gesticulators20
- gesticulatory22
- glaciological26
- glaciologists22
- glamorization29
- glamorousness21
- glaringnesses20
- glassblowings26
- glasspapering25
- glioblastomas23
- glossolalists18
- glycosylating27
- glycosylation25
- granularities18
- grossularites17
- hilariousness18
- hydroxylamine32
- hydroxylating31
- hydroxylation29
- hyperinflated26
- hyperpolarize33
- hypervigilant28
- implacability29
- implantations22
- inarticulates19
- inexplainable30
- infibulations23
- inflammations25
- inflationisms22
- inflationists19
- inoperculates22
- inosculations20
- installations17
- instillations17
- insufflations23
- intercalating21
- intercalation19
- intercellular21
- intergalactic23
- interglacials21
- intergranular19
- interlacement22
- interlayering20
- interpellated20
- interpellates19
- interpellator19
- interplanting22
- interpolating21
- interpolation19
- interpolative22
- interpolators18
- interrelating18
- interrelation16
- intertillages18
- intracellular21
- intragalactic23
- intramuscular23
- intraocularly22
- intravascular23
- invigilations22
- inviolability25
- inviolateness20
- ipsilaterally21
- irreclaimable24
- irreclaimably26
- irreplaceable24
- irreplaceably26
- isolationisms18
- isolationists15
- kaffeeklatsch33
- labanotations19
- labialization28
- laboriousness19
- lackadaisical26
- lactobacillus26
- lactoglobulin26
- laggardnesses20
- lamellibranch28
- landownership25
- languidnesses20
- languishingly26
- languishments24
- laparoscopies23
- laparoscopist23
- laryngectomee25
- laryngologies22
- laryngoscopes25
- lastingnesses18
- laterizations24
- latinizations25
- latitudinally21
- laughableness24
- laughingstock29
- laureateships20
- lawlessnesses19
- legislatively24
- legislatorial18
- lollapaloozas29
- lowerclassman25
- lowerclassmen25
- lymphoblastic31
- machicolation26
- mailabilities21
- malabsorption24
- malacological27
- malacologists23
- malacostracan24
- maladaptation22
- maladjustment32
- maladminister22
- maladroitness19
- malariologies20
- malariologist20
- manipulatable26
- manipulations23
- manslaughters23
- matriculating24
- matriculation22
- mecamylamines29
- megaloblastic26
- melancholiacs27
- melanizations28
- melanogeneses21
- melanogenesis21
- metalanguages23
- methacrylates24
- microbalances27
- microfilament27
- microfilariae23
- microfilarial24
- microplankton29
- microvascular28
- millilamberts25
- misarticulate21
- miscalculated26
- miscalculates25
- miscellaneous23
- miscellanists22
- misclassified24
- misclassifies23
- misplacements27
- mistranslated19
- mistranslates18
- monofilaments25
- monomolecular26
- monosyllables25
- multicellular25
- multifilament26
- multipolarity24
- multisyllabic28
- muscularities22
- myelencephala29
- nannoplankton26
- naphthylamine28
- neoclassicism24
- neoclassicist21
- neoplasticism24
- neoplasticist21
- neuroblastoma22
- neuromuscular24
- nomenclatural24
- nomenclatures23
- noncancelable27
- nonclassified23
- nonclassrooms22
- noncumulative28
- nonlandowners22
- nonrecyclable28
- nonrefillable24
- nonregulation20
- nucleoplasmic29
- obnubilations23
- octosyllabics26
- octosyllables24
- odontoblastic22
- oracularities18
- oscillational20
- osteomalacias20
- osteoplasties17
- outmanipulate23
- outplacements25
- outpopulating25
- overbalancing28
- overelaborate21
- overexplained30
- overglamorize32
- overinflating25