Here's what rhymes with convectiondiffusion.
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 convectiondiffusion
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 contribution execution institution prosecution substitution convolution destitution elocution antipollution lilliputian constitution prostitution restitution retribution circumlocution counterrevolution redistribution reconstitution electrocution human ruin lumen rumen lupin union inhuman disunion gluten illumine neuen cumin crewman newton reunion acumen bitumen nonhuman soupcon albumin superhuman subhuman groomsmen communion nonunion