iodine-131 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
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
Hypernym
radioisotope 1
noun
a radioactive isotope of an element; produced either naturally or artificially
iodine 1
noun
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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