Here's what rhymes with pleocroism.
                        
                        
                    
                                chrism  prism  schism  egoism  archaism  egotism  aphorism  holism  legalism  sophism  tropism  mechanism  organism  patriotism  heroism  journalism  liberalism  pluralism  terrorism  activism  dualism  dynamism  pessimism  rheumatism  catechism  eroticism  nihilism  paganism  regionalism  anarchism  animism  elitism  euphemism  exorcism  heathenism  hedonism  lyricism  mannerism  pauperism  plagiarism  albinism  cretinism  isomerism  racialism  witticism  mongolism  purism  solecism  tokenism  criticism  communism  imperialism  socialism  alcoholism  antagonism  despotism  feminism  materialism  optimism  altruism  barbarism  cynicism  embolism  federalism  feudalism  formalism  humanism  magnetism  modernism  naturalism  parallelism  positivism  pragmatism  radicalism  rationalism  relativism  unionism  anachronism  bilingualism  classicism  dogmatism  fatalism  militarism  pacifism  separatism  aneurism  chauvinism  corporatism  favoritism  fetishism  nepotism  ostracism  parasitism  populism  revisionism  shamanism  stoicism  automatism  botulism  clericalism  mesmerism  neutralism  parochialism  proselytism  puritanism  revivalism  solipsism  synergism  anabolism  bimetallism  creationism  dilettantism  futurism  galvanism  monetarism  capitalism  metabolism  nationalism  colonialism  mysticism  skepticism  symbolism  determinism  empiricism  fanaticism  scepticism  absolutism  cannibalism  collectivism  consumerism  narcissism  paternalism  protectionism  secularism  agnosticism  astigmatism  behaviorism  centralism  commercialism  hypnotism  mercantilism  recidivism  sectarianism  voluntarism  abolitionism  ecumenism  exoticism  favouritism  gradualism  impressionism  negativism  perfectionism  conservatism  professionalism  romanticism  evangelism  industrialism  republicanism  antisemitism  eclecticism  emotionalism  factionalism  functionalism  isolationism  monasticism  provincialism  traditionalism  expressionism  sectionalism  syndicalism  authoritarianism  hyperthyroidism  hypothyroidism  postmodernism  egalitarianism  expansionism  intellectualism  microorganism  scholasticism  evangelicalism  exhibitionism  individualism  internationalism  totalitarianism  utilitarianism  sensationalism  anticommunism  interventionism  somnambulism  fundamentalism  cosmopolitanism  existentialism  humanitarianism  sentimentalism  electromagnetism  transcendentalism  constitutionalism  environmentalism  Words that almost rhyme with pleocroism
rhythm  arisen  risen  mizzen  given  vision  listen  mission  prison  fission  riven  glisten  addition  commission  driven  edition  admission  algorithm  ambition  cognition  collision  emission  excision  ignition  omission  attrition  derision  logarithm  audition  stiffen  readmission  tactician  position  condition  decision  division  tradition  permission  physician  provision  recognition  transition  acquisition  petition  precision  suspicion  coalition  incision  partition  prohibition  revision  submission  clinician  forgiven  remission  tuition  apparition  fruition  magician  sedition  technician  volition  apposition  envision  imprison  paroxysm  patrician  precondition  striven  cataclysm  logician  theoretician  rescission  definition  opposition  television  transmission  proposition  repetition  abolition  deposition  exhibition  intuition  nutrition  politician  musician  supposition  demolition  erudition  preposition  requisition  contrition  dentition  inquisition  presupposition  rendition  disquisition  pediatrician  premonition  rhetorician  dietitian  ebullition  munition  prevision  competition  composition  disposition  expedition  supervision  ammunition  exposition  inhibition  superstition  imposition  subdivision  admonition  circumcision  indecision  intermission  redefinition  electrician  manumission  obstetrician  statistician  academician  imprecision  decomposition  malnutrition  mathematician  predisposition  transposition  extradition  interposition  superposition  diagnostician  juxtaposition  indisposition  superimposition  wisdom  serum  theorem  cecum  gingham  winsome  system  kingdom  victim  dictum  gypsum  fearsome  symptom  pilgrim  ecosystem