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noun
A radioactive isotope of an element; produced either naturally or artificially.
is a specific kind of: isotope.
is a broader term that covers: tracer | label | iodine-131 | iodine-125.
Dutch: radio-isotoopPolish: izotop promieniotwórczy, radioizotop
Find more on radioisotope elsewhere: etymology - rhymes - Wikipedia.
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