10 letters
- harrumphed22
- harumphing24
- headphones19
- hectograph22
- heliograph20
- hemisphere20
- hemolymphs26
- hemophilia21
- hemophilic24
- heterophil18
- hieroglyph22
- hierophant18
- holographs20
- holography22
- holophytic23
- homographs22
- homophobes23
- homophobia23
- homophobic26
- homophones21
- homophonic24
- hydrophane21
- hydrophone21
- hydrophyte22
- hygrograph23
- hygrophyte23
- hyphenated21
- hyphenates20
- hyphenless21
- hypomorphs25
- hypophyses24
- hypophysis24
- ideographs18
- ideography20
- indophenol19
- insphering19
- interphase16
- ionophores16
- ionosphere16
- isomorphic21
- karyolymph27
- kymographs26
- kymography28
- lagomorphs21
- limitrophe19
- lipophilic23
- lithograph20
- lithophane19
- lithophyte20
- logographs20
- logogriphs20
- loopholing20
- lophophore21
- lymphatics24
- lymphocyte26
- lymphogram26
- lymphokine26
- lymphomata24
- lyophilise19
- lyophilize28
- macrophage23
- macrophyte23
- megaphoned22
- megaphones21
- megaphonic24
- mellophone21
- melphalans21
- mephitises18
- mesomorphs21
- mesomorphy23
- mesophylls22
- mesophytes20
- mesophytic23
- mesosphere18
- metaphases18
- metaphoric21
- metaphrase18
- metaphysic23
- micrograph23
- microphage23
- microphone22
- microphyll25
- mimeograph23
- misphrased19
- misphrases18
- monographs21
- monophonic23
- morphactin22
- morphemics24
- morphinism22
- morphogens21
- morphology23
- multiphase20
- mycophiles24
- nalorphine18
- naphthenes19
- naphthenic22
- negrophobe21
- nemophilas20
- neophiliac20
- neophilias17
- nephelines18
- nephelinic21
- nephelites17
- nephoscope22
- nephridial18
- nephridium21
- nephrology21
- nephrotics19
- neutrophil18
- nomographs21
- nomography23
- noospheres16
- nymphalids23
- nymphettes21
- nympholept25
- oenophiles17
- oesophagus18
- oleographs18
- oligophagy22
- omophagies20
- omphaloses19
- ophiuroids17
- ophthalmia21
- ophthalmic24
- orographic20
- oropharynx25
- orphanages18
- orphanhood19
- orphically22
- pansophies19
- pantograph21
- paragraphs20
- paranymphs24
- paraphrase18
- paraphyses20
- paraphysis20
- pedophiles20
- pedophilia20
- pedophilic23
- perilymphs24
- peripheral19
- periphytic23
- periphyton21
- petroglyph23
- phagocytes22
- phagocytic25
- phalangeal20
- phalangers19
- phalaropes19
- phallicism23
- phanerogam21
- phantasied17
- phantasies16
- phantasmal20
- phantasmic22
- pharisaism18
- pharmacies21
- pharmacist21
- pharyngeal21
- phasedowns20
- phatically22
- phelloderm21
- phellogens20
- phelonions18
- phenacaine20
- phenacetin20
- phenacites19
- phenakites20
- phenazines26
- phenocryst21
- phenolated18
- phenolates17
- phenomenal21
- phenomenas20
- phenomenon21
- phenotypes21
- phenotypic24
- phenoxides24
- phenytoins19
- pheromonal20
- pheromones19
- philanders18
- philatelic20
- philippics25
- philistine17
- philosophe21
- philosophy23
- philtering19
- phlebogram24
- phlebology24
- phlebotomy24
- phlegmatic24
- phlegmiest21
- phlogistic21
- phlogiston19
- phlogopite21
- phonations17
- phonematic22
- phonically23