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iodine-131

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Noun iodine-131 has 1 sense
  1. iodine-131 - 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 is a kind of
    iodine, iodin, I, atomic number 53; radioisotope
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