radio activation (noun) contamination: adulteration
Sinonime: contagion,
corruption,
decay, defilement, dirtying,
disease,
epidemic,
filth, foulness, impurity,
infection, pestilence,
plague, poisoning,
pollution, radioactivation, rottenness, spoliation,
taintAntonime: cleaning,
cure,
healing, purification, sterilization