antiatom

noun
an·​ti·​atom

Definition of antiatom

: an atom comprised of antiparticles

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First Known Use of antiatom

1959, in the meaning defined above

History and Etymology for antiatom

anti- entry 1 + atom

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Time Traveler for antiatom

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The first known use of antiatom was in 1959

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Cite this Entry

“Antiatom.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiatom. Accessed 19 Sep. 2020.

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