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iodine-131

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
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Noun1.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
radioisotope - a radioactive isotope of an element; produced either naturally or artificially
atomic number 53, I, iodin, iodine - a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)


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In his study released Thursday, scientist David Lochbaum contends that two dangerous radioactive materials -- iodine-131 and cesium-137 -- were released in the accident.
SANTA SUSANA MELTDOWN RELEASED MASSIVE RADIATION STATE-FUNDED PANEL ... by Daily News (Los Angeles, CA)
The thyroid can be affected by ionizing radiation through the skin by gamma radiation, including X rays; by fission products, such as cesium; or by ingestion or inhalation of iodine-131 ([sup.
Disrupting a delicate balance: environmental effects on the thyroid by Brown, Valerie / Environmental Health Perspectives
Oktay and her colleagues also found that the sediments contain small but measurable quantities of iodine-131, a human-made radioactive isotope with a half-life of about 8 days.
9/11 ash, and more found in river muck. (Earth Science) by Science News
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