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1. iodine-131
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.
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2. iodine-125
noun. light radioactive isotope of iodine with a half-life of 60 days; used as a tracer in thyroid studies and as a treatment for hyperthyroidism.
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Synonyms
3. iodine
noun. ['ˈaɪəˌdaɪn'] 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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Etymology
- iodine (English)
- iode (French)
- ἰώδης (Ancient Greek (to 1453))
4. iodine
noun. ['ˈaɪəˌdaɪn'] a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic.
Antonyms
Synonyms
Etymology
- iodine (English)
- iode (French)
- ἰώδης (Ancient Greek (to 1453))