iodine 131


noun Chemistry.

a radioactive isotope of iodine having a mass number 131 and a half-life of 8.6 days, used in the diagnosis and treatment of disorders of the thyroid gland.

Nearby words

  1. iodide,
  2. iodimetry,
  3. iodin,
  4. iodinate,
  5. iodine,
  6. iodine stain,
  7. iodine-123,
  8. iodine-125,
  9. iodine-131,
  10. iodine-fast

Compare radioiodine.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019