• synonyms


[bek-uh-rel; French bekuh-rel]
  1. A·lex·an·dre Ed·mond [a-lek-sahn-druh ed-mawn] /a lɛkˈsɑ̃ drə ɛdˈmɔ̃/, 1820–91, French physicist (son of Antoine César).
  2. An·toine Cé·sar [ahn-twan sey-zar] /ɑ̃ˈtwan seɪˈzar/, 1788–1878, French physicist.
  3. An·toine Hen·ri [ahn-twan ahn-ree] /ɑ̃ˈtwan ɑ̃ˈri/, 1852–1908, French physicist (son of Alexandre Edmond): Nobel Prize 1903.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for becquerel

Historical Examples of becquerel

  • In 1896 Becquerel brought us to the threshold of the great discovery.

    The Outline of Science, Vol. 1 (of 4)

    J. Arthur Thomson

  • These are associated with the names of Marconi, Becquerel, and Langley.

  • These rays are often called Becquerel rays in honor of their discoverer.


    Willis Eugene Tower

  • Becquerel may be considered one of the creators of electro-chemistry.

  • The iron was in excess of that in the normal blood, but in Becquerel's cases the mean was 0.381—less than the normal.

British Dictionary definitions for becquerel


  1. the derived SI unit of radioactivity equal to one disintegration per secondSymbol: Bq
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Word Origin for becquerel

C20: named after Antoine Henri Becquerel


  1. 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
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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

becquerel in Medicine


(bĕ-krĕl, bĕk′ə-rĕl)
  1. A unit of measurement of radioactivity, equal to one disintegration per second.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

becquerel in Science


[bĕ-krĕl, bĕk′ə-rĕl]
  1. 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.
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  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.