11 letters
- fetoprotein18
- fortnightly22
- gametophore21
- gametophyte23
- gastrotrich18
- generalizer24
- generalship20
- generically21
- genetically21
- genotypical23
- geometrical20
- geophysical24
- geostrophic21
- geotectonic20
- gerontocrat17
- glutathione18
- glycerinate20
- governorate18
- granolithic20
- granophyres21
- granophyric24
- granulocyte21
- grapholects22
- graptolites17
- greengrocer19
- greenhearts16
- greenmailer18
- greenockite21
- haptoglobin23
- heartstring16
- hectoliters17
- hectoringly22
- helicopters20
- helicopting23
- heliotropes17
- heliotropic20
- hematologic22
- hemoprotein20
- hepatectomy24
- hepatocytes21
- hepatotoxic26
- hereinafter17
- heretically20
- herpetology21
- heteroclite17
- heterocycle22
- heterogonic19
- heterograft18
- heterolytic19
- heterophile19
- heterophony21
- heteroploid18
- heterospory18
- heterotopic19
- heterotroph18
- heterotypic21
- holographer21
- holographic24
- homeporting22
- homogeneity21
- honeyeaters16
- horseplayer19
- hortatively20
- hydrogenate19
- hydrotropic22
- hygrometric23
- hymenoptera22
- hyperactive25
- hyperborean22
- hypercharge25
- hypermetric24
- hypersaline20
- hyperstatic21
- hypertonias19
- hypocenters22
- hypocentral23
- hypogastric23
- hypothecate23
- iconography24
- importantly21
- imprecatory22
- impregnator20
- incorporate18
- incorporeal19
- incorrectly21
- incorruptly22
- inculpatory22
- integrality17
- integrators14
- intemperate18
- interagency20
- intercalary18
- intercalate16
- intercepted19
- intercepter18
- interceptor18
- interchange20
- intercooler16
- intercostal16
- intercouple20
- intercrater15
- interdealer14
- intergrowth19
- interjector24
- interlayers15
- interlopers16
- interplayed19
- interpolate16
- interpreted16
- interpreter15
- interrelate13
- interrogate14
- interrogees14
- interrupter16
- interruptor16
- interschool18
- intolerance17
- intrathecal18
- intricately18
- ironhearted15
- irrelevance20
- irrelevancy22
- kinetochore21
- latchstring20
- leatherneck22
- letterspace18
- lichenology23
- lionhearted16
- lithography23
- logographic24
- luteotropic19
- luteotropin17
- lycanthrope23
- lycanthropy25
- mantelpiece22
- melanophore21
- mercenarily21
- metagenetic20
- metanephric23
- metanephroi20
- methylating22
- methylation20
- monographic25
- moonlighter20
- morphogenic25
- myelopathic25
- mythopoetic24
- narcoleptic22
- narratology17
- necrologies18
- necrologist18
- necrophilia21
- necropoleis19
- negotiators14
- negotiatory16
- negrophobia22
- neocortical19
- nephrectomy25
- nephrotoxic27
- neuroleptic20
- neuropathic21
- neurotropic19
- nomographic25
- nonathletic19
- nonliterary16
- nonliterate14
- nonoperatic19
- nontropical20
- northeaster14
- northerlies15
- obliterator15
- oligochaete19
- ontogenetic18
- openhearted18
- operational16
- operatively21
- optionality18
- orchestrate16
- ornithology19
- ornithopter17
- orographies18
- orthocenter17
- orthography22
- orthopaedic20
- orthopteran17
- osteopathic19
- outcapering21
- outcheating20
- outreaching20
- overarching23
- overheaping23
- overhearing20
- overheating20
- overleaping22
- overletting19
- overnighter20
- overoperate18
- overplaying24
- overprotect21
- overreacher20