an·​ti·​nu·​cle·​ar ˌan-tē-ˈnü-klē-ər How to pronounce antinuclear (audio) ˌan-ˌtī- How to pronounce antinuclear (audio)
 nonstandard  -kyə-lər
: opposing the use or production of nuclear power
: tending to react with cell nuclei or their components (such as DNA)
antinuclear antibodies

Examples of antinuclear in a Sentence

Recent Examples on the Web Nearly 200,000 protesters turned out in New York City six months after Three Mile Island for an antinuclear rally. Trip Gabriel, New York Times, 6 Jan. 2024 Our recent research indicates that one type of autoantibody called antinuclear antibodies increased nearly 50 percent in the U.S. in less than 30 years. Olivia Casey, Scientific American, 1 Dec. 2023 Subsequent films retreated from the original’s explicit antinuclear sentiments, instead introducing a rogue’s gallery of monsters for Godzilla to fight. Asher Elbein, Scientific American, 3 Nov. 2023 Its closing chapters explain how the antinuclear movement started by Ukrainian writers soon broke the bounds of the Soviet leader Mikhail Gorbachev’s timid policy of openness and evolved as a Ukraine-wide eco-nationalist movement. Adam Higginbotham, Foreign Affairs, 14 Apr. 2020 Ellsberg spent the next several decades as a writer, lecturer and antinuclear activist. Elaine Woo, Los Angeles Times, 16 June 2023 In the early 1960s, antinuclear reformers joined with public intellectuals, such as peace activist Kenneth E. Boulding and science writer Gerard Piel, to pen articles about how the military-industrial complex could be reoriented to serve human needs rather than war. Michael Brenes, The New Republic, 18 June 2020 The antinuclear movement grew after the 1986 Chernobyl disaster created a cloud of nuclear fallout that reached West Germany, leaving scarring memories among that generation. Erika Solomon, New York Times, 14 Apr. 2023 Consolidated Nuclear Security has operated Y-12 since previous contractor B&W was fired after antinuclear protestors broke into the facility in 2012. USA TODAY, 23 Feb. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'antinuclear.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1958, in the meaning defined at sense 1

Time Traveler
The first known use of antinuclear was in 1958

Dictionary Entries Near antinuclear

Cite this Entry

“Antinuclear.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2024.

Medical Definition


an·​ti·​nu·​cle·​ar -ˈn(y)ü-klē-ər How to pronounce antinuclear (audio)
: being antibodies or autoantibodies that react with components and especially DNA of cell nuclei and that tend to occur frequently in connective tissue diseases (as systemic lupus erythematosus, rheumatoid arthritis, and Sjögrens syndrome)
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