Here's what rhymes with urcation.
                        
                        
                    
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 demarcation  divination  emulation  enumeration  exaltation  exhortation  gravitation  inactivation  inauguration  inoculation  interpolation  intimation  intonation  liquidation  masturbation  ovulation  recitation  reclamation  renovation  urbanization  vaccination  vindication  visitation  organization  consideration  examination  explanation  classification  determination  legislation  reputation  translation  appreciation  compensation  expectation  exploitation  illustration  justification  organisation  orientation  approximation  assimilation  celebration  computation  condemnation  consultation  coordination  deformation  degeneration  destination  elimination  emancipation  frustration  illumination  incorporation  inflammation  installation  penetration  qualification  regeneration  simulation  speculation  ventilation  amplification  articulation  attenuation  colonization  condensation  deliberation  deprivation  dissociation  distillation  fragmentation  gratification  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specification  utilization  civilisation  clarification  denomination  dissemination  generalization  globalization  humiliation  infiltration  mobilization  multiplication  optimization  pronunciation  purification  remuneration  signification  socialization  sophistication  stratification  argumentation  deregulation  dispensation  diversification  extermination  immunization  implantation  intimidation  menstruation  mortification  personification  polymerization  quantification  refrigeration  repudiation  stipulation  utilisation  identification  participation  demonstration  discrimination  characterization  manipulation  precipitation  reconciliation  disintegration  privatization  reorganization  specialization  stabilization  subordination  capitalization  crystallization  democratization  hybridization  nationalization  normalization  ornamentation  rationalization  sedimentation  simplification  standardization  sterilization  supplementation  synchronization  visualization  administration  representation  implementation  rehabilitation  liberalization  transplantation  centralization  hospitalization  intensification  experimentation  excommunication  instrumentation  industrialization  conceptualization  decentralization  misrepresentation  Words that almost rhyme with urcation
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