beta radiation

Cultural Dictionary
beta radiation [(bay-tuh)]

High-energy electrons, carrying a negative charge, that are sent out by some radioactive nuclei. (See alpha radiation and gamma radiation.)

Note: Beta radiation, unlike alpha radiation, has some penetrating power and can pass through clothing and wooden walls.
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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