[ op-uh n-hahy-mer ]
/ ˈɒp ənˌhaɪ mər /
J(ulius) Robert,1904–67, U.S. nuclear physicist.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for j robert oppenheimer
/ (ˈɒpənˌhaɪmə) /
J (ulius) Robert. 1904–67, US nuclear physicist. He was director of the Los Alamos laboratory (1943–45), which produced the first atomic bomb. He opposed the development of the hydrogen bomb (1949) and in 1953 was alleged to be a security risk. He was later exonerated
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
Science definitions for j robert oppenheimer
J(ulius) Robert 1904-1967
[ ŏp′ən-hī′mər ]
American physicist who directed the Los Alamos, New Mexico, laboratory during the development of the first atomic bomb (1942-1945). After World War II, he became an advocate for the peaceful use of atomic energy and opposed the development of the hydrogen bomb.
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