Here's what rhymes with diffusionperfusion.
fusion perfusion diffusion illusion allusion occlusion effusion profusion suffusion confusion infusion delusion collusion seclusion disillusion reperfusion obtrusion conclusion exclusion inclusion intrusion transfusion extrusion protrusion contusion preclusion malocclusion Words that almost rhyme with diffusionperfusion
loosen solution pollution proven elution mucin unloosen evolution dissolution persecution dilution devolution gruesome unproven ablution twosome resolution revolution absolution elocution involution locution antipollution contribution execution prosecution diminution attribution retribution convolution destitution circumlocution irresolution lilliputian distribution constitution institution substitution prostitution restitution counterrevolution redistribution reconstitution electrocution human ruin lumen rumen lupin union acumen gluten illumine neuen cumin crewman newton albumin inhuman reunion superhuman disunion nonhuman subhuman soupcon communion bitumen nonunion groomsmen