(n)French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908), Syn.Antoine Henri Becquerel, Henri Becquerel
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
(Physics) Radiations first observed by the French physicist Henri Becquerel, in working with uranium and its compounds. They consist of a mixture of alpha, beta, and gamma rays. [ Webster 1913 Suppl. ]