13 letters
- miscegenation23
- misconception27
- misconnection25
- misestimation20
- misevaluation23
- misimpression23
- misperception26
- mitochondrion24
- modernisation19
- modernization28
- mollification25
- mortification23
- multifunction27
- multitrillion21
- mummification30
- mutualization29
- mystification25
- necessitation18
- nitrification21
- nonaggression20
- nonconclusion25
- nonconduction25
- nonconnection24
- nondeposition20
- nonpossession19
- nonregulation20
- normalization28
- nullification24
- octodecillion23
- orchestration19
- ornamentation19
- overassertion18
- overattention19
- overeducation23
- overexpansion29
- overextension26
- overinflation23
- overnutrition20
- oversecretion21
- overvaluation24
- palletization28
- participation23
- patronization27
- pelletization28
- perambulation25
- peregrination20
- periodization27
- perseveration21
- petrification23
- photoemission22
- photoreaction22
- picturization30
- pidginization30
- pluralization29
- podsolization28
- podzolization37
- pontification24
- postinfection24
- postinjection30
- postisolation18
- postrecession20
- preadaptation21
- precipitation23
- precombustion27
- preconception27
- preconvention26
- preconviction28
- predomination22
- prefiguration23
- premeditation21
- prenomination22
- preoccupation27
- preordination19
- prepossession20
- preproduction25
- prerevolution23
- pretelevision22
- pretermission20
- prevarication24
- privatization30
- proliferation21
- pronunciation23
- pulverization32
- qualification31
- quindecillion31
- randomization28
- ratiocination18
- reacquisition27
- reaffirmation23
- reaggregation20
- reapplication24
- reattribution18
- recalculation23
- recalibration21
- reciprocation23
- recirculation22
- recombination24
- recompilation24
- recomposition23
- recomputation24
- recrimination21
- rectification23
- redescription21
- redisposition18
- reduplication23
- reexamination25
- reexportation24
- reforestation17
- reformulation22
- refrigeration19
- regimentation20
- regurgitation19
- reimportation20
- reincarnation19
- reinfestation18
- reinnervation20
- reinoculation20
- reintegration17
- relubrication22
- remonstration18
- renegotiation17
- reorientation15
- republication25
- repunctuation23
- resegregation18
- restimulation19
- resuscitation18
- retranslation16
- retroflection21
- retrogression16
- retrospection20
- reunification22
- reutilization25
- revaccination25
- reverberation21
- rhythmization32
- ritualization25
- routinization25
- ruggedization29
- scarification23
- scintillation20
- sedimentation19
- sensitisation15
- sensitization24
- sequestration24
- serialization24
- sexploitation25
- sexualization32
- signalization27
- signification23
- socialization27
- solemnization28
- sovietization27
- specification26
- stabilization27
- sterilization24
- strangulation19
- structuration19
- suballocation23
- subcollection26
- subcommission27
- subgeneration21
- subirrigation20
- subordination20
- subpopulation26
- subsaturation19
- subsidization28
- subtilization28
- summarization30
- superaddition20
- superfetation21
- superposition21
- supplantation23
- syllabication24
- symbolization32
- systemization28
- teleportation18
- temporization29
- tenderization25
- terrorization23
- transcription21
- transgression17
- translocation19
- transmutation19
- transpiration18
- transposition18
- triangulation19
- vandalization30
- verbalization31
- verbigeration23
- vermiculation26
- vernalization29
- versification24
- victimization33
- visualization29
- vitrification24
- vulcanisation24
- vulcanization33
- vulgarization31
- winterization27