v. the action or process of reducing speed
The deceleration of her car was obvious as she entered the school zone.
decelerate; slow; brake
accelerate
haitian
haitien
mation
nation
ration
station
alsatian
carnation
castration
causation
cessation
cetacean
citation
creation
cremation
croatian
crustacean
dalmatian
damnation
deflation
dictation
dilation
donation
duration
elation
filtration
fixation
flirtation
flotation
formation
foundation
frustration
gestation
gradation
gyration
horatian
hydration
inflation
lactation
libration
ligation
location
migration
mutation
narration
negation
nitration
notation
optation
oration
ovation
plantation
privation
probation
proration
prostration
quotation
reflation
relation
rotation
salvation
sarmatian
sedation
sensation
stagflation
stagnation
starvation
summation
taxation
temptation
translation
vacation
vaxstation
vibration
vocation
abdication
aberration
abrogation
acclimation
accusation
activation
adaptation
admiration
adoration
adulation
advocation
affectation
affirmation
affrication
aggravation
agitation
allegation
allocation
alteration
altercation
amputation
animation
annexation
annotation
appalachian
appellation
application
approbation
arbitration
aspiration
assocation
augmentation
automation
aviacion
aviation
avocation
backwardation
bifurcation
calculation
calibration
cancellation
celebration
cogitation
coloration
combination
commendation
compensation
compilation
complication
computation
concentration
condemnation
condensation
confirmation
confiscation
conflagration
confrontation
congregation
conjugation
connotation
consecration
conservation
consolation
constellation
consternation
constipation
consultation
consummation
contemplation
conversation
convocation
coronation
corp
corp.
corporation
correlation
culmination
cultivation
d'aviation
declaration
decoration
dedication
defamation
deformation
degradation
dehydration
delegation
demarcation
demonstration
deportation
depravation
depredation
deprivation
derivation
desecration
desiccation
designation
desolation
desperation
destination
detonation
devastation
deviation
dilatation
disinflation
dislocation
dispensation
disputation
dissertation
dissipation
distillation
divination
domination
duplication
education
elevation
elongation
emanation
embarkation
emigration
emulation
equitation
escalation
estimation
evocation
excavation
excitation
exclamation
exhalation
exhortation
exhumation
expectation
expiration
explanation
explication
exploitation
exploration
fabrication
fascination
federation
fermentation
fibrillation
figuration
fluctuation
fluoridation
foliation
formulation
fragmentation
fumigation
gastrulation
generation
germination
glaciation
graduation
granulation
gravitation
habitation
hesitation
hibernation
illustration
imitation
immigration
implantation
implication
importation
impregnation
imputation
incantation
incarnation
inclination
incrustation
incubation
indentation
indexation
indication
indignation
infestation
infiltration
inflammation
information
inhalation
innovation
inspiration
installation
instigation
insulation
integration
intimation
intonation
inundation
invitation
invocation
irrigation
irritation
isolation
jubilation
laceration
legislation
levitation
liberation
limitation
liquidation
litigation
lubrication
machination
malformation
masturbation
maturation
mediation
medication
meditation
menstruation
ministration
miscreation
miseration
mitigation
moderation
modulation
molestation
motivation
mutilation
navigation
nomination
nucleation
obfuscation
obligation
observation
occupation
operation
orchestration
ordination
oscillation
ostentation
ovulation
oxidation
pagination
palpitation
penetration
perforation
permutation
perspiration
perturbation
pigmentation
pollination
population
preparation
presentation
preservation
proclamation
procreation
profanation
propagation
protestation
provocation
publication
punctuation
radiation
realization
recantation
recitation
reclamation
recreation
reformation
refutation
registration
regulation
rehydration
relaxation
relocation
renovation
reparation
replication
reputation
reservation
resignation
respiration
restoration
retardation
revelation
revocation
rumination
sanitation
saturation
segmentation
segregation
separation
sequestration
simulation
situation
speculation
stimulation
stipulation
strangulation
subluxation
suffocation
superstation
syndication
tabulation
termination
titillation
toleration
transformation
transplantation
transportation
trepidation
tribulation
unimation
univation
usurpation
vaccination
vacillation
validation
valuation
variation
vegetation
ventilation
vindication
violation
visitation
abbreviation
abomination
acceleration
accommodation
accreditation
accumulation
adjudication
administration
affiliation
agglomeration
alienation
alleviation
amalgamation
amelioration
amortization
amplification
annihilation
anticipation
appreciation
appropriation
approximation
argumentation
articulation
assassination
assimilation
association
authentication
authorization
balkanization
capitulation
centralization
certification
christianization
civilization
clarification
classification
coagulation
codification
cogeneration
cohabitation
collaboration
colonization
colorization
commemoration
communication
communization
concatenation
conciliation
confabulation
confederation
configuration
conglomeration
congratulation
consideration
consolidation
contamination
continuation
cooperation
coordination
corroboration
decaffeination
decapitation
deforestation
degeneration
deification
deliberation
delineation
demodulation
demonization
denomination
denunciation
depopulation
depreciation
deregulation
desalination
desegregation
determination
detoxication
devaluation
discoloration
discrimination
disembarkation
disinclination
disinformation
disintegration
dissemination
dissociation
documentation
domestication
dramatization
echolocation
edification
ejaculation
elaboration
elimination
emancipation
enumeration
equalization
equivocation
eradication
evacuation
evaluation
evaporation
exacerbation
exaggeration
examination
exasperation
exfoliation
exhilaration
exoneration
expatriation
expropriation
extermination
extrapolation
facilitation
falsification
fertilization
finlandization
fortification
gasification
genetization
gentrification
globalization
glorification
gratification
hallucination
harmonization
humiliation
hybridization
hydrogenation
hyperinflation
illumination
imagination
immunization
impersonation
implementation
improvisation
inactivation
inauguration
incarceration
incorporation
incrimination
indoctrination
infatuation
inhabitation
initiation
inoculation
insemination
insinuation
instrumentation
interpretation
interrogation
intimidation
intoxication
invalidation
investigation
ionization
irradiation
islamization
justification
legalization
liberalization
localization
magnetization
magnification
manifestation
manipulation
maximization
mechanization
misallocation
misapplication
miscalculation
misinformation
mobilization
modernization
modification
multiplication
mummification
negotiation
neutralization
normalization
notification
nullification
optimization
organisation
organization
orientation
origination
ornamentation
ossification
pacification
panelization
participation
pasteurization
perpetuation
polarization
pontification
precipitation
predestination
prefabrication
premeditation
preoccupation
pressurization
privatisation
privatization
procrastination
prognostication
proliferation
pronunciation
purification
qualification
quantification
ramification
ratification
reaffirmation
reallocation
recalculation
recommendation
reconfirmation
recrimination
rectification
recuperation
redecoration
rededication
reforestation
refrigeration
regeneration
regimentation
reincarnation
reiteration
rejuvenation
remediation
remuneration
renomination
renunciation
repatriation
representation
repudiation
reregulation
resuscitation
retaliation
revaluation
reverberation
russification
sanctification
sedimentation
simplification
socialization
solicitation
sophistication
specialization
specification
stabilization
stalinization
standardization
sterilization
subordination
subsidization
substantiation
tabloidization
triangulation
unification
unionization
urbanization
utilization
vaporization
verification
victimization
vilification
visualization
vulgarization
westernization
acidification
alphabetization
cannibalization
capitalization
categorization
characterization
collectivization
commercialization
computerization
criminalization
decentralization
decertification
decontamination
dehumanization
demobilization
democratization
demoralization
desalinization
destabilization
detoxification
differentiation
discontinuation
disorganization
disorientation
disqualification
diversification
electrification
excommunication
experimentation
generalization
hospitalization
identification
incapacitation
incoordination
indemnification
insubordination
intensification
intercorporation
marginalization
mineralization
misappropriation
miscommunication
misinterpretation
misrepresentation
monopolization
nationalization
naturalization
nondiscrimination
nonproliferation
overpopulation
overregulation
overvaluation
personalization
personification
politicization
popularization
radicalization
rationalization
reaffiliation
reauthorization
recertification
reclassification
reconciliation
reconfiguration
reconsideration
reevaluation
reexamination
rehabilitation
reincorporation
reinterpretation
reinvigoration
renegotiation
reorganization
reunification
revitalization
saponification
securitization
self-congratulation
self-determination
self-perpetuation
singularization
suburbanization
transillumination
undervaluation
americanization
antidiscrimination
decriminalization
demilitarization
denationalization
denuclearization
industrialization
miniaturization
mischaracterization
misidentification
recapitalization
renationalization
telecommunication
institutionalization
internationalization
deinstitutionalization
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