antimatter
64
8.4
- noun
- /ˈæntiˌmætər/
- Specialized
:
antimateria
- An antimatter particle is the opposite of a regular particle, such as a positron being the antiparticle of an electron.
- matter and antimatter
- antimatter particles
- annihilate antimatter
That's what's known about matter antimatter imbalance in the universe.
- That's what's known about matter antimatter imbalance in the universe.
- And when that happens it gives off a positron, the antimatter particle of an electron.
- And if the world is made of antimatter, everything still will behave the same.
- The next step beyond that would be fusion plants, fusion reactors and antimatter reactors.
- In fact, the energy density contained in a certain mass of antimatter is the highest we know.
- Dark matter is not antimatter, and dark matter is also not negative mass.
- There could be such a thing as negative mass, and I should mention that negative mass does not mean antimatter.
- Why are we here beyond just the the matter and antimatter?
Examples
-
The next step beyond that would be fusion plants, fusion reactors and antimatter reactors.
-
Of course, this process must be handled very delicately because any antimatter particle is quickly destroyed upon contact with matter.
Academic text (2005) -
The only way to destroy antimatter is with matter.
-
One important question is whether it is even possible to store antimatter for the long periods required by space travel.
Academic text (2005) -
In fact, the energy density contained in a certain mass of antimatter is the highest we know.
-
But scientists can also produce small amounts of antimatter in the lab.
Academic text (2010) -
A universe filled with matter makes one wonder what happened to all the antimatter.
Academic text (2005) -
The resulting meeting of matter and antimatter pushed energy into the ship's propulsion unit.
Fiction book (1999) -
"You see," he went on, warming up, "when antimatter meets the normal stuff, it reacts."
Fiction book (1991) -
The name reflects the copious annihilation of matter and antimatter detected in the source.
Academic text (1995)
How Powerful
- Specialized
64
8.4
- Literature
16
9.9
- Specialized
17
4.6
451
1.0
- Specialized
691
2.9
Surface Forms
Morphology
Etymology
Antimatter comes from the part anti- meaning 'against' or 'opposite', as in antifreeze, and the everyday word matter, which means physical 'stuff'. So antimatter is the 'opposite of matter', and when antimatter and matter meet they destroy each other and give off a burst of energy.