radioactivity
Pronunciation: rā′dē-ō-ak-tiv′i-tē
Definition: The property of some atomic nuclei of spontaneously emitting gamma rays or subatomic particles (α and β rays) by the process of nuclear disintegration and measured in disintegrations per second (dps). One dps is equal to 1 becquerel, and 3.7 × 1010 dps equals 1 curie.
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Examples: glitazone, GI cocktail, etc.

