11 letters
- intercalate16
- intercooler16
- intercostal16
- intercourse16
- interracial16
- interschool18
- intractable19
- intraocular17
- intrathecal18
- introducers17
- involucrate21
- irrationals13
- lacerations16
- lacrimators18
- lactiferous19
- laureations14
- literations13
- literatures13
- lubricators19
- lustrations14
- luteotropic19
- luteotropin17
- macerations18
- maculations20
- matriculant20
- matriculate19
- maturations16
- meliorators15
- mercuration19
- meritocrats17
- molestation16
- morulations17
- natatoriums16
- natriuretic16
- naturalised15
- naturalises14
- naturalists14
- naturalizes23
- necrologist18
- negotiators14
- neocortical19
- neurologist16
- neurotropic19
- neutralists14
- nonreactors16
- notoriously16
- novaculites21
- nucleations18
- obliterator15
- obscuration19
- obstetrical18
- obstruction19
- obturations16
- occultation20
- oceanariums19
- operational16
- oracularity18
- orientalist13
- osculations17
- outbalances20
- outdistance17
- overactions19
- overarousal17
- overcaution20
- overcontrol20
- particulars19
- particulate19
- parturients16
- paternalist16
- peculations20
- percolation19
- percolators18
- perorations15
- postcranial19
- postulation17
- praetorians15
- pratincoles19
- precautions19
- proconsular20
- procreation18
- procrustean19
- procuration19
- proletarian16
- proletariat15
- prolocutors19
- prosecution19
- prostration15
- protections18
- protectoral18
- protostelic18
- protractile18
- protraction18
- quercitrons25
- radiolucent18
- rancorously19
- rarefaction18
- ratatouille14
- ratiocinate15
- rationalise13
- rationalist13
- rattlebrain16
- reacquaints25
- reactionary17
- recantation16
- recitations15
- reclamation19
- reconstruct19
- recordation16
- recreations15
- rectangular19
- redactional17
- reductional18
- refractions18
- refutations16
- regulations16
- reinoculate17
- relaxations20
- relocations16
- reluctating19
- reluctation17
- reparations15
- replicators18
- reputations16
- resolutions14
- resorcinols16
- restaurants13
- restoration12
- restriction15
- retaliation13
- retaliatory14
- retardation13
- reticulates16
- retractions15
- retranslate13
- retroacting17
- retroaction15
- revaluation18
- revocations19
- revolutions18
- ritornellos14
- rototillers13
- rustication16
- rusticators15
- sacculation20
- salutations14
- sanctuaries16
- sansculotte17
- saturations13
- secretarial15
- secretariat14
- seminatural17
- situational14
- solanaceous17
- speculation20
- sporulation17
- staurolites13
- staurolitic16
- sternutator13
- straitlaced16
- strangulate16
- strategical17
- subrational17
- subtraction19
- tabulations17
- tantalizers22
- tautologies15
- tenaciously19
- teratologic17
- terminators15
- terricolous16
- tetracaines15
- tetrasporic17
- theatricals17
- thrasonical18
- tolerations13
- totalisator12
- tourmalines17
- trabeations15
- trajections24
- tranquilest23
- transaction16
- transactors15
- transection16
- translation14
- translative17
- translators13
- translatory15
- translocate16
- translucent18
- transuranic17
- triangulate16
- triceratops17
- trifurcates18
- trochanters17
- truncations17
- ulcerations17
- ultramarine17
- ultrasecret16
- ultrasonics17
- uncastrated17