fusion, nuclear

Cultural Dictionary

fusion, nuclear definition


The combining of two small atomic nuclei to form a larger nucleus, sometimes with the release of energy. (Compare nuclear fission.)

Note: The fusion of hydrogen into helium releases huge amounts of energy and is the main energy source of stars, including the sun.
Note: Hydrogen bombs use the energy of fusion.
Note: The use of fusion as a controllable energy source on Earth is still in its experimental stages.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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