Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics (medicine) The radioactive isotope of iodine, 13153I, having a half-life of 8 days; used as a medical tracer

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun 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

Etymologies

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Examples

  • The ministry also said that an abnormal amount of the material, called iodine-131, was detected in milk from a dairy farm about 50 kilometers away from the plant.

    Elevated Radioactivity Found in Japanese Milk, Spinach

  • U.S. states, which aren't recommending protective measures for the public, are reporting tiny amounts of radioactive iodine known as iodine-131 that is seen in the early stages of a nuclear reaction.

    Radiation Detected in U.S.

  • Austria's Central Institute for Meteorology and Geodynamics indicated that, at most, the Japanese nuclear reactors have emitted about 20% of the iodine-131 and 50% of the cesium-137 that Chernobyl did.

    Aftershock could weaken damaged nuclear facility

  • A water sample taken just outside the water intake for the No. 2 unit showed the level of radioactive iodine-131 at 7.5 million times the allowable limit, the most dangerous level of radiation so far detected.

    Tiny Fish Spur Widening Worry

  • The discharge had an iodine-131 concentration of about 100 million times the level Japan considers safe for release into the environment, according to Tepco.

    Anger Greets Kan in Fukushima Trip

  • TEPCO said seawater near the plant contains radioactive iodine-131 that is 7.5 million times the legal limit.

    Radioactive cesium found in small fish near Fukushima plant

  • He also said no one in the U.S. should be taking potassium iodide as a preventive measure against possible ingestion of radioactive iodine-131.

    U.S. Seeks to Reassure on Contaminated Food

  • One sample of konago caught Friday contained twice the permissible level of radioactive iodine-131, which has a half-life of eight days and which can accumulate in the thyroid in humans, possibly raising the risk of thyroid cancer.

    Tiny Fish Spur Widening Worry

  • A water sample taken just outside the water intake for the No. 2 unit showed the level of radioactive iodine-131 at 7.5 million times the allowable limit, the most dangerous level of radiation so far detected.

    Release of Irradiated Water Is Stopped

  • The state-run Xinhua news agency reported Thursday that trace levels of the radioactive isotope iodine-131 were discovered on spinach plants in the cities of Beijing, Tianjin and the province of Henan.

    Nuclear Runoff Worries Beijing

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