becquerel
the derived SI unit of radioactivity equal to one disintegration per second.
Becquerel
Antoine Henri . 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 Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
becquerel
[¦bek·ə¦rel or be′krel] (nucleonics)
The International System unit of activity of a radionuclide, equal to the activity of a quantity of a radionuclide having one spontaneous nuclear transition per second. Symbolized Bq.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.