
1) Family subject 2) Fictional power source 3) Matter 4) Particle physics subject 5) Star Trek warp drive fuel 6) Substance
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https://www.crosswordclues.com/clue/antimatter

In particle physics, antimatter is material composed of antiparticles, which have the same mass as particles of ordinary matter but have opposite charge and other particle properties such as lepton and baryon number. Encounters between particles and antiparticles lead to the annihilation of both, giving rise to varying proportions of high-energy p...
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http://en.wikipedia.org/wiki/Antimatter

substance composed of subatomic particles that have the mass, electric charge, and magnetic moment of the electrons, protons, and neutrons of ... [2 related articles]
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http://www.britannica.com/eb/a-z/a/83

(antiparticle) Species of subatomic particles that have the same mass and spin as normal particles, however, they have opposite electrical charges from their normal matter counterparts. In the case of antineutrons they are opposite of neutrons in magnetic moment. Positrons, which are the counterpart to electrons, have a positive ...
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http://www.chemistry-dictionary.com/definition/antimatter+%28antiparticle%2

Material with properties equivalent to those of matter but with subatomic particles' quantum properties reversed; for example, particles' charges are opposite. Antimatter happens to be rare in our universe. However, it is believed that in the Big Bang equal quantities of matter and antimatter were c...
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http://www.daviddarling.info/encyclopedia/A/antimatter.html

All particles of ordinary matter (electrons, protons, neutrons) have anti-matter partners that appear identical in all respects (e.g. mass, spin) except that they have the opposite electric charge. We believe that in the Big Bang equal quantities of matter and antimatter were created. The fact that the universe now contains matter and not anti-matt...
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http://www.encyclo.co.uk/local/21425

Material made from antifermions. We define the fermions that are common in our universe as matter and their antiparticles as antimatter. In the particle theory there is no a priori distinction between matter and antimatter. The asymmetry of the universe between these two classes of particles is a deep puzzle for which we are not yet completely sure of an explanation. ...
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http://www.encyclo.co.uk/visitor-contributions.php

Matter consisting of particles with charges opposite that of ordinary matter. In antimatter, protons have a negative charge while electrons have a positive charge.
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http://www.seasky.org/astronomy/astronomy-glossary.html

[
n] - matter consisting of elementary particles that are the antiparticles of those making up normal matter
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http://www.webdictionary.co.uk/definition.php?query=antimatter

Material made from antifermions. We define the fermions that are common in our universe as matter and their antiparticles as antimatter. In the particle theory there is no a priori distinction between matter and antimatter. The asymmetry of the universe between these two classes of particles is a deep puzzle for which we are not yet completely sure...
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https://www.encyclo.co.uk/local/20687
noun matter consisting of elementary particles that are the antiparticles of those making up normal matter
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https://www.encyclo.co.uk/local/20974

In physics, form of matter in which most of the attributes (such as electrical charge, magnetic moment, and spin) of elementary particles are reversed. These antiparticles can be created in particle accelerators, such as those at CERN in Geneva, Switzerland, and at Fermilab in the USA. In 1996 physicists at CERN created the first atoms of antimatte...
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https://www.encyclo.co.uk/local/21221

A material made from antiparticles. The particles that are common in our universe are defined as matter and their antiparticles as antimatter. In the particle theory there is almost no a priori distinction between matter and antimatter. Their interactions are almost identical. The asymmetry of the universe between these two cla...
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https://www.encyclo.co.uk/local/21257

Matter composed of the antiparticles ofnormal matter.
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https://www.encyclo.co.uk/local/21322

matter composed only of antiparticles, esp. antiprotons, antineutrons, and positrons.
Found on
https://www.infoplease.com/dictionary/antimatter

mass consisting of antiparticles of normal substances
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https://www.vocabulary.com/lists/190359
No exact match found.