11 letters
- haphazardly31
- haphazardry30
- harrumphing25
- hebephrenia22
- hebephrenic25
- hectographs23
- heliographs21
- hemimorphic27
- hemispheres21
- hemispheric24
- hemophiliac25
- hemophilias22
- hemophilics25
- heterophile19
- heterophony21
- heterotroph18
- hieroglyphs23
- hierophants19
- holographed22
- holographer21
- holographic24
- homographic26
- homomorphic27
- homophobias24
- homophonies22
- homophonous23
- hydrography25
- hydrophanes22
- hydrophilic25
- hydrophobia24
- hydrophobic27
- hydrophones22
- hydrophytes23
- hydrophytic26
- hydrosphere21
- hygrographs24
- hygrophytes24
- hygrophytic27
- hyperphagia25
- hyperphagic28
- hypertrophy25
- hyphenating24
- hyphenation22
- hypomorphic29
- hypopharynx33
- hypophyseal26
- hypophysial26
- iconography24
- ideographic22
- idiographic22
- idiomorphic23
- indophenols20
- interphases17
- ionospheres17
- ionospheric20
- isomorphism22
- isomorphous20
- ithyphallic25
- karyolymphs28
- kymographic30
- lithographs21
- lithography23
- lithophanes20
- lithophytes21
- lithosphere19
- logographic24
- lophophores22
- lymphoblast26
- lymphocytes27
- lymphocytic30
- lymphograms27
- lymphokines27
- lyophilised21
- lyophilises20
- lyophilized30
- lyophilizer29
- lyophilizes29
- macrophages24
- macrophagic27
- macrophytes24
- macrophytic27
- mammography29
- megaphoning25
- melanophore21
- mellophones22
- meromorphic25
- mesomorphic25
- mesonephric23
- mesonephroi20
- mesonephros20
- mesophyllic26
- mesospheres19
- mesospheric22
- mesotrophic22
- metamorphic25
- metanephric23
- metanephroi20
- metanephros20
- metaphrases19
- metaphysics24
- micrographs24
- microphages24
- microphones23
- microphonic26
- microphylls26
- microsphere22
- mimeographs24
- misemphases22
- misemphasis22
- misphrasing22
- monographed23
- monographic25
- monomorphic26
- monophagies22
- monophagous23
- monophonies21
- monophthong25
- monophylies23
- morphactins23
- morphinisms23
- morphogenic25
- morphologic25
- morphometry24
- multiphasic24
- multiphoton22
- mycophagies26
- mycophagist26
- mycophagous27
- mythography27
- nalorphines19
- naphthalene21
- nasopharynx27
- necrophilia21
- necrophilic24
- negrophobes22
- negrophobia22
- neophiliacs21
- nephelinite19
- nephoscopes23
- nephrectomy25
- nephritides18
- nephropathy24
- nephrostome20
- nephrotoxic27
- neutrophils19
- nomographic25
- nonemphatic24
- nonphonemic25
- nonphonetic22
- nonphysical24
- nucleophile23
- nympholepsy28
- nympholepts26
- nymphomania26
- ophthalmias22
- orographies18
- orphanhoods20
- orthography22
- ozonosphere26
- paleography24
- pamphleteer23
- pantographs22
- paragraphed22
- paragrapher21
- paragraphic24
- paraphrased20
- paraphraser19
- paraphrases19
- paratyphoid22
- pedophiliac24
- pedophilias21
- pemphiguses25
- peripherals20
- peripheries19
- periphrases19
- periphrasis19
- periphytons22
- petroglyphs24
- petrography23
- phagocytize32
- phagocytose23
- phalanstery20
- phallically25
- phallicisms24
- phanerogams22
- phantasmata20
- phantasying22
- phantomlike25
- pharisaical20
- pharisaisms19
- pharmacists22
- pharyngitis21
- phelloderms22
- phenacaines21
- phenacetins21
- pheneticist20
- phenocopies23
- phenocrysts22
- phenologies20
- phenomenons22