iodine-131 iodine-131


  • (n) heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter


  1. One of the most active elements in the fallout has been iodine-131, which gets into grass, then into cows, then into milk, and then into children who drink the milk.
  2. With iodine-131 or phosphorus-32 and a Geiger counter this too, is relatively easy.
  3. In the laboratory he extracted snake venom, purified it, laced it with radioactive iodine-131, and injected it into the hind legs of dogs.


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definition of iodine-131
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