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See also: anti-matter
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.
- (physics) Matter that is composed of the antiparticles of those that constitute normal matter.
- (physics) A form of matter that has a key property, such as charge, opposite to that of ordinary matter.
matter composed of antiparticles