antimatter
Antimatter is composed of antiparticles, which have the opposite charge of regular particles. Antimatter is also called negative matter.
Matter makes up all the things that exist: everything in the world is matter. Words beginning with anti are opposed to their root. Therefore, antimatter is the opposite of matter. If antimatter and matter were to collide, both would be destroyed, releasing a huge and dangerous amount of energy. This happens because the particles that make up matter and the antiparticles that make up antimatter have opposite electric charges. The existence of antimatter is something studied by physicists.
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matter consisting of elementary particles that are the antiparticles of those making up normal substancestype of:matterthat which has mass and occupies space
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Vocabulary lists containing antimatter
January 16 is National Nothing Day. Mark this empty occasion by learning this list of words describing things that are absent, or missing, or never there at all. It turns out that there are lots of ways to say nothing!
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