radioactivity introduced into a nonradioactive substance by bombarding the substance with charged particles.
artificial radioactivity n.
The radioactivity of isotopes that have been artificially produced through the bombardment of naturally occurring isotopes by subatomic particles or by high levels of x-rays or gamma rays. Also called induced radioactivity.
- Artificial reality
. Contemporary Examples They have become prisoners of their own artificial reality, with no easy access to the larger truths outside. Seven Habits of Highly Ineffective Political Parties David Frum October 7, 2013 Historical Examples There is an artificial reality about his works, which is no where else to be met with. Hazlitt on English […]
- Artificial respiration
the stimulation of natural respiratory functions in persons whose breathing has failed or in newborn infants by artificially forcing air into and out of the lungs. Historical Examples The above method of artificial respiration is also applicable in cases of electric shock, suffocation by gas and smoke. Manual of Military Training James A. Moss Proceed […]
- Artificial selection
a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics. Historical Examples The differences of the individuals that come into consideration in this artificial selection are very slight. The History of Creation, Vol. I (of 2) Ernst […]
- Artificial surface
noun a synthetic athletic playing surface used instead of natural grass; also called artificial turf