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[bek-uh-rel; French bekuh-rel] /ˌbɛk əˈrɛl; French bɛkəˈrɛl/
Alexandre Edmond
[a-lek-sahn-druh ed-mawn] /a lɛkˈsɑ̃ drə ɛdˈmɔ̃/ (Show IPA),
1820–91, French physicist (son of Antoine César).
Antoine César
[ahn-twan sey-zar] /ɑ̃ˈtwan seɪˈzar/ (Show IPA),
1788–1878, French physicist.
Antoine Henri
[ahn-twan ahn-ree] /ɑ̃ˈtwan ɑ̃ˈri/ (Show IPA),
1852–1908, French physicist (son of Alexandre Edmond): Nobel Prize 1903. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Becquerel
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British Dictionary definitions for Becquerel


the derived SI unit of radioactivity equal to one disintegration per second Bq
Word Origin
C20: named after Antoine Henri Becquerel


/French bɛkrɛl/
Antoine Henri (ɑ̃twan ɑ̃ri). 1852–1908, French physicist, who discovered the photographic action of the rays emitted by uranium salts and so instigated the study of radioactivity: Nobel prize for physics 1903
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Becquerel in Medicine

becquerel bec·que·rel (bě-krěl', běk'ə-rěl')
A unit of measurement of radioactivity, equal to one disintegration per second.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Becquerel in Science
  (bě-krěl', běk'ə-rěl')   
The SI derived unit used to measure the rate of radioactive decay. When the nucleus of an atom emits nucleons (protons and/or neutrons) and is thereby transformed into a different nucleus, decay has occurred. A decay rate of one becquerel for a given quantity means there is one such atomic transformation per second.
Family of French physicists, including Antoine César (1788-1878), one of the founders of the science of electrochemistry; his son Alexandre Edmond (1820-1891), noted for his research on phosphorescence, magnetism, electricity, and optics; and his grandson Antoine Henri (1852-1908), who discovered spontaneous radioactivity in uranium. Antoine Henri Becquerel's work led to the discovery of radium by Marie and Pierre Curie, with whom he shared the 1903 Nobel Prize for physics.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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