10 letters
- hypergolic23
- hyperopias20
- hyperploid22
- hypersonic21
- hypocrites20
- hypodermal22
- hypodermic24
- hypodermis21
- hypoplasia21
- hysterical18
- icosahedra16
- ideographs18
- ideography20
- isocracies16
- kiloparsec21
- lachrymose21
- ladyfishes19
- landscaper19
- landscapes19
- lapidaries15
- laypersons17
- leadership17
- leopardess15
- leprosaria14
- macroscale20
- micropyles22
- microscale20
- misphrased19
- mycophiles24
- myocardial20
- narcolepsy20
- neoclassic18
- neoplasias15
- octahedral17
- octarchies18
- orphically22
- ostracised14
- overplaids19
- pachyderms24
- packhorses22
- parabioses16
- paralytics19
- paramedics20
- paraphyses20
- paraphysis20
- pastorales14
- peacockish25
- pearlashes16
- peccadillo22
- pelycosaur20
- pericycles22
- periodical18
- phalaropes19
- pharmacies21
- philanders18
- phylaxises25
- phyllaries19
- picofarads20
- placidness19
- planishers17
- playhouses19
- pleochroic22
- plesiosaur15
- plowshares19
- polyamides20
- polyhedral20
- polyparies19
- polyphasic24
- porcelains18
- practicals20
- preciously20
- predacious18
- preholiday19
- preschools19
- prevocalic24
- proclaimed21
- prosodical18
- psalmodies18
- psychotics23
- pyranoside17
- pyridoxals24
- radarscope17
- radicalise15
- radicchios19
- radiolyses14
- radiolysis14
- reanalysis14
- reassailed12
- reciprocal20
- reclassify19
- redisplays17
- replicases17
- repolished17
- repolishes16
- rhapsodies16
- rhapsodist16
- rhapsodize25
- rockslides19
- saccharase18
- saccharide19
- saccharify23
- saccharine19
- saccharins19
- sacerdotal15
- sacroiliac17
- sailboards15
- sapodillas16
- saprolites14
- sarcophagi20
- sarcoplasm20
- scallopers18
- scandalise16
- scapolites17
- scareheads16
- schizocarp30
- scholastic19
- schoolyard19
- sclerotics17
- scorecards17
- scorpaenid18
- scrapheaps21
- scratchily21
- selachians17
- sharecrops18
- shipboards19
- showplaces22
- slapdashes17
- slavocracy23
- slipcovers21
- socialised15
- spaciously20
- spearheads16
- speciously20
- sphenoidal18
- spheroidal17
- splotchier19
- sporicidal18
- sporicides17
- supercoils18
- swordplays20
- synalephas19
- synaloepha19
- syncarpies19
- therapsids16
- trailheads14