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