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.
Words nearby iodine 131
iodic acid, iodide, iodimetry, iodinate, iodine, iodine 131, iodine stain, iodine-123, iodine-125, iodine-131, iodine-fast
Compare radioiodine.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for iodine-131
iodine-131
n.
A radioisotope of iodine that emits beta and gamma rays, has a half-life of 8.05 days, and is used as a tracer in thyroid studies and as therapy in hyperthyroidism and thyroid cancer.
The American Heritage® Stedman's Medical Dictionary
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