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Word of the Day Wednesday, June 10, 2026

antimatter

/æntɪˈmeɪtər/ noun · British & US
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What does antimatter mean?

noun

A form of matter that has negative mass-energy density, existing as the antiparticle of regular matter. It is typically composed of antielectrons and antiprotons.

Example

"The scientist worked with antimatter in a highly controlled environment to avoid any potential risks."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for antimatter

Antonyms of antimatter

Rhymes with antimatter

Etymologically related