Decontamination rhymes with:
contamination, contamination, contamination, contamination, contamination, examination, reexamination, abomination, antidiscrimination, contamination, culmination, denomination, determination, discrimination, dissemination, domination, elimination, emanation, examination, extermination, germination, illumination, incrimination, insemination, nomination, reexamination, renomination, self-determination, termination, transillumination