Oppenheimer

American  

[op-uhn-hahy-mer] / ˈɒp ənˌhaɪ mər /

noun

1. J(ulius) Robert, 1904–67, U.S. nuclear physicist.

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Oppenheimer British  

/ ˈɒpənˌhaɪmə /

noun

1. 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

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Oppenheimer Scientific  

/ ŏp′ən-hī′mər /

1. 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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Example Sentences

See Examples For:

Oppenheimer

“Intel is currently slated to supply its 14A process, a role TSMC’s own nodes could replace,” Oppenheimer semiconductor equity analyst Rick Schafer wrote in a note to clients that published Monday.

From MarketWatch ● Oct. 5, 2026

FuelCell Energy stock rose after Oppenheimer initiated coverage with the equivalent of a Buy rating and a price target that represents 49% upside.

From Barron's ● Sep. 29, 2026

As the New York Yankees’ scouting director, Oppenheimer usually spends the bulk of his time in baseball hotbeds in the Sunbelt, and with good reason.

From The Wall Street Journal ● Sep. 29, 2026

Some may take issue with likening Oprah Winfrey to J. Robert Oppenheimer, the father of the atomic bomb.

From Salon ● Sep. 27, 2026

When Nedelsky pointed out that the book was in Dutch, Oppenheimer replied, “But it’s such easy Dutch.”

From "Big Science" by Michael Hiltzik

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