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Added 9 October 2026

antimatter

/ˈæn.tiˌmæt.ɚ/ noun

In Latin: none, coined in 1898 Coined: 1898, by Arthur Schuster Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about antimatter at Wordnik → Where our words come from →

Matter that is composed of the antiparticles of those that constitute normal matter.
A form of matter that has a key property, such as charge, opposite to that of ordinary matter.

Origin

From anti- + matter. Coined by British physicist Arthur Schuster in 1898 to describe matter that resists gravity in a jocular article in Nature titled "Potential Matter.—A Holiday Dream", but not used in a modern sense until the 1940s.

From Wiktionary, via Kaikki.org (CC BY-SA)

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