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