10 letters
- octarchies18
- operculate18
- optatively20
- optionally18
- optometric19
- orientally15
- orphically22
- orthoclase16
- orthoepies15
- orthoepist15
- orthopedic19
- orthoptera15
- oscillator15
- osteopathy17
- paillettes15
- palletizer24
- pathetical19
- pathologic21
- peacockier23
- peashooter15
- peccadillo22
- peculiarly21
- percolated18
- percolates17
- percolator17
- perfoliate17
- pericycles22
- perihelial17
- periosteal14
- perithecia18
- peritoneal15
- petrologic19
- phagocytic25
- phatically22
- philatelic20
- phonically23
- photically22
- photocells20
- photolytic21
- photometer18
- photometry20
- phylactery23
- phyllaries19
- phylloxera26
- phytotoxic27
- planchette20
- pleiotropy19
- pleochroic22
- plutocracy23
- plyometric22
- poetically20
- pollinator16
- polyatomic22
- polychaete21
- polychrome24
- polyclonal22
- polyhedral20
- polyhistor18
- polymathic24
- polytheist18
- portabello18
- postcoital17
- potentilla16
- potlatched20
- potlatches19
- pratincole18
- preachiest18
- precalculi22
- prechilled21
- precontact20
- preethical19
- preholiday19
- prelection18
- prelogical20
- premycotic24
- prevocalic24
- procaryote18
- proctorial17
- projectile26
- prosthetic18
- protection17
- protective20
- protectory18
- prothallia17
- protostele14
- prototypal19
- prototypic21
- pyrogallol20
- pyrrhotite17
- reactively20
- reallocate15
- reallotted13
- receptacle20
- reciprocal20
- recollects18
- recyclable23
- relatively18
- relocation15
- replicable21
- replicated18
- replicates17
- replicator17
- reticently17
- reticulate15
- retractile14
- rheostatic15
- rhetorical16
- ricocheted19
- rotatively17
- rototilled13
- rototiller12
- sclerotial15
- scratchily21
- societally17
- sociopathy20
- spectrally20
- sphalerite16
- spirochete18
- splotchier19
- stealthier13
- stealthily16
- sterically17
- tablecloth20
- tachometer18
- tactically20
- technocrat19
- teetotally14
- telegraphy20
- teleologic17
- telepathic19
- telephonic20
- telephotos16
- telescopic20
- teliospore14
- temporally20
- teratology15
- tetherball17
- tetraploid15
- tetrarchic18
- theatrical16
- theocratic18
- theodolite14
- thermopile19
- thetically19
- thiopental17
- thixotropy24
- tocopherol19
- tolerantly15
- toleration12
- tolerative15
- topicality19
- toploftier17
- toploftily20
- topnotcher19
- toroidally15
- tracheoles16
- triathlete13
- trichocyst20
- trichology20
- trichotomy20
- tricolette14
- tripletail15
- triplicate17
- trochoidal17
- tropically20
- typhlosole19
- varicocele21
- vertically21
- vortically21
- vorticella19
- xerophytic27
- yellowtail18