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