15 Letter Words
immunodiffusion
26
incomprehension
24
misapprehension
24
circumincession
23
circuminsession
21
interconversion
20
autotransfusion
18
posttransfusion
20
14 Letter Words
hyperextension
29
inapprehension
21
interdiffusion
21
antisubversion
19
overpersuasion
19
postdepression
19
seroconversion
19
ultraprecision
18
antidepression
17
antiaggression
16
retransmission
16
uncircumcision
22
13 Letter Words
overexpansion
25
overextension
23
comprehension
22
subcommission
21
bioconversion
20
decompression
20
discommission
20
photoemission
20
animadversion
19
misimpression
19
recompression
19
condescension
18
pretelevision
18
mispersuasion
17
nonconclusion
17
postrecession
17
prepossession
17
pretermission
17
dispossession
16
lateroversion
16
anticollision
15
anticorrosion
15
antirecession
15
interspersion
15
nonaggression
15
12 Letter Words
expromission
23
extraversion
22
extroversion
22
circumfusion
21
circumcision
20
hypertension
20
photofission
20
apprehension
19
decommission
19
malocclusion
18
recommission
18
dermabrasion
17
preadmission
17
reconversion
17
reprehension
17
inconclusion
16
prerecession
16
reimpression
16
repercussion
16
resubmission
16
derepression
15
introversion
15
nonadmission
15
retroversion
15
stereovision
15
11 Letter Words
coextension
20
hypotension
19
ambiversion
18
cablevision
18
inextension
18
compression
17
imprecision
17
misdivision
17
subdivision
17
preinvasion
16
reprovision
16
subdecision
16
superfusion
16
supervision
16
manumission
15
prescission
15
reaccession
15
subincision
15
suppression
15
anteversion
14
interfusion
14
nondecision
14
progression
14
readmission
14
irremission
13
10 Letter Words
expression
19
commission
16
compassion
16
compulsion
16
compursion
16
confession
15
conversion
15
convulsion
15
perversion
15
prehension
15
profession
15
subversion
15
abscission
14
concession
14
conclusion
14
concussion
14
impression
14
misprision
14
oppression
14
percussion
14
permission
14
precession
14
preclusion
14
procession
14
propension
14
9 Letter Words
exclusion
18
excursion
18
expansion
18
explosion
18
expulsion
18
diffusion
16
extension
16
extrusion
16
confusion
14
obversion
14
perfusion
14
pervasion
14
prevision
14
profusion
14
provision
14
accension
13
accession
13
concision
13
diversion
13
divulsion
13
immersion
13
immission
13
impassion
13
implosion
13
impulsion
13
8 Letter Words
excision
17
affusion
14
effusion
14
cohesion
13
adhesion
12
division
12
occasion
12
aversion
11
avoision
11
avulsion
11
decision
11
envision
11
eversion
11
evulsion
11
infusion
11
inhesion
11
invasion
11
refusion
11
revision
11
abrasion
10
eclosion
10
emersion
10
emission
10
emulsion
10
incision
10