Here's what rhymes with perpigmentation.
                        
                        
                    
                                pigmentation  nation  station  notation  commendation  segmentation  aeration  inundation  operation  duration  foundation  rotation  degradation  imitation  plantation  recommendation  temptation  fermentation  maturation  mediation  moderation  mutation  narration  negation  aberration  adoration  augmentation  citation  connotation  damnation  donation  iteration  oration  sedation  ablation  annotation  dilation  elation  education  relation  situation  concentration  creation  generation  location  occupation  presentation  radiation  separation  adaptation  admiration  compensation  demonstration  deviation  immigration  indication  inflation  innovation  inspiration  invitation  liberation  limitation  migration  motivation  salvation  sensation  taxation  accommodation  agitation  alteration  aspiration  condemnation  confrontation  consultation  contemplation  decoration  dissertation  excitation  irritation  medication  meditation  nomination  oxidation  penetration  quotation  saturation  termination  vacation  vibration  animation  annihilation  aviation  causation  cessation  condensation  dilatation  emigration  federation  fragmentation  ionization  modulation  probation  toleration  veneration  vocation  appellation  automation  castration  denunciation  deputation  devastation  dispensation  enumeration  exaltation  exhortation  gestation  hydration  implantation  inhalation  innervation  intimation  intonation  perforation  punctuation  reparation  sanitation  sedimentation  summation  ulceration  information  application  combination  consideration  examination  formation  association  conversation  cooperation  corporation  determination  imagination  integration  observation  preparation  regulation  reputation  translation  variation  activation  conservation  correlation  cultivation  declaration  elevation  expectation  exploitation  exploration  illustration  isolation  obligation  orientation  restoration  violation  allocation  anticipation  assimilation  collaboration  computation  confirmation  degeneration  delegation  designation  destination  documentation  domination  elimination  emancipation  estimation  fixation  frustration  hesitation  illumination  implication  inclination  indignation  initiation  installation  irrigation  manipulation  navigation  respiration  segregation  speculation  valuation  vegetation  ventilation  accusation  affiliation  affirmation  aggregation  annexation  approbation  articulation  attenuation  authorization  calibration  colonization  compilation  consolation  dedication  denomination  deprivation  derivation  desolation  desperation  dissemination  dissipation  distillation  elaboration  evaporation  exaggeration  excavation  expiration  filtration  graduation  habitation  importation  incubation  insulation  irradiation  litigation  modernization  ordination  oscillation  pronunciation  retardation  starvation  validation  adjudication  affectation  allegation  alternation  amputation  bifurcation  cancellation  confederation  confiscation  conformation  consecration  constipation  consummation  coronation  culmination  delineation  demarcation  divination  elongation  elucidation  emulation  escalation  fluctuation  germination  gravitation  imputation  intimidation  invocation  liquidation  masturbation  menstruation  ornamentation  perspiration  perturbation  polymerization  recitation  reclamation  regurgitation  renovation  renunciation  stagnation  subjugation  supplementation  urbanization  usurpation  vindication  visitation  organization  population  communication  explanation  circulation  evaluation  legislation  participation  publication  representation  appreciation  differentiation  discrimination  implementation  modification  organisation  preservation  realization  revelation  stimulation  transportation  acceleration  alienation  appropriation  arbitration  celebration  congregation  consolidation  contamination  continuation  coordination  deformation  depreciation  deterioration  incorporation  inflammation  manifestation  negotiation  precipitation  proclamation  propagation  recreation  regeneration  relaxation  reservation  resignation  simulation  assassination  complication  deliberation  disintegration  dislocation  dissociation  evacuation  experimentation  fabrication  fascination  generalization  incarnation  infiltration  mobilization  notification  optimization  polarization  preoccupation  realisation  reformation  remuneration  replication  retaliation  transplantation  unification  abbreviation  amalgamation  argumentation  authentication  capitulation  categorization  conciliation  conflagration  constellation  consternation  dehydration  deportation  deregulation  devaluation  eradication  exclamation  exportation  extermination  fibrillation  immunization  inactivation  inauguration  inoculation  interpolation  interrogation  magnetization  magnification  ovulation  prolongation  provocation  refutation  relocation  resuscitation  revocation  stipulation  synchronization  vaccination  administration  interpretation  civilization  classification  identification  investigation  transformation  accumulation  calculation  configuration  formulation  justification  approximation  characterization  proliferation  qualification  reconciliation  registration  specification  utilization  amplification  certification  civilisation  clarification  coagulation  globalization  gratification  humiliation  intoxication  localization  multiplication  privatization  purification  ratification  signification  socialization  sophistication  specialization  subordination  verification  calcification  capitalization  democratization  duplication  fertilization  instrumentation  mortification  nationalization  normalization  personification  quantification  refrigeration  repudiation  standardization  sterilization  utilisation  visualization  rehabilitation  liberalization  reorganization  stabilization  stratification  centralization  crystallization  decentralization  diversification  excommunication  hospitalization  hybridization  intensification  rationalization  simplification  industrialization  conceptualization  misrepresentation  Words that almost rhyme with perpigmentation
basin  haven  hasten  occasion  invasion  evasion  equation  persuasion  taken  pagan  bacon  patron  shaken  laden  maiden  contagion  layman  laymen  shaman  mistaken  undertaken  awaken  straighten  statesman  salesman  overtaken  tradesmen  forsaken