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/ˈæn.tiˌmæt.ɚ/ · noun
(physics) Matter that is composed of the antiparticles of those that constitute normal matter..
But most theories predict that equal amounts of matter and antimatter should have been produced during the big bang, and the mystery of what happened to all the antimatter is a central question in fundamental physics.
Particles of matter and antimatter are identical, except for an opposite electrical charge. An electron has a negative charge whereas its antiparticle, the positron, has a positive charge, and both have an identical mass.
Use anti matter when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Anti matter means (physics) Matter that is composed of the antiparticles of those that constitute normal matter..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
But most theories predict that equal amounts of matter and antimatter should have been produced during the big bang, and the mystery of what happened to all the antimatter is a central question in fundamental physics.
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