Recent Examples of radioactivity from the Web
The 1,000 square-mile swath of land is patrolled by special police and exiting visitors are screened as many as four times for radioactivity before being allowed to leave.
The Catawba Riverkeeper Foundation is expressing concerns about radioactivity levels at the Marshall Steam Station on Lake Norman and other plants as disclosed in new lab results from Duke.
The long-range torpedo with a monster warhead is apparently meant to shower coastal regions with deadly radioactivity, leaving cities uninhabitable.
The imaging agent was first used in medical applications in the 1960s because its short half-life meant that patients were getting less exposure to radioactivity than from other diagnostic tracers.
One type of radioactivity, called beta decay, releases either a positron and a neutrino or an electron and an antineutrino.
The radioactivity will not even penetrate a sheet of paper.
Solution: When Amelia Maggia’s body was exhumed, her tissues and bones revealed evidence of radioactivity.
The radioactivity then gradually destroys thyroid cells without surgery, although in most cases the patients do eventually end up on hormone replacement as well.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radioactivity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of radioactivity
First Known Use: 1899See Words from the same year
RADIOACTIVITY Defined for Kids
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