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artificial radioactivity

American  

noun

Physics.
  1. radioactivity introduced into a nonradioactive substance by bombarding the substance with charged particles.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Dr. Lawrence and his ever-changing army of co-workers did most of their work on artificial radioactivity and transmutation of elements with an 85-ton magnet.

From Time Magazine Archive

The most obvious application of artificial radioactivity which can be foreseen is in the medicinal field.

From Time Magazine Archive

The story concerned University of California's Ernest Orlando Lawrence, No. 1 U. S. experimenter in artificial radioactivity, whose 85-ton electromagnet frequently makes scientific news.

From Time Magazine Archive

Positrons have now been produced at the rate of 30,000 per second by gamma rays, and the Curie-Joliots of Paris observed them shooting out of light-weight elements in their first experiments with artificial radioactivity.

From Time Magazine Archive

Lawrence replied defensively that “the radio-sodium experiments were instigated by me alone,” adding, “I did suggest looking for artificial radioactivity this way and actively supervised the experiments.”

From "Big Science" by Michael Hiltzik