12 definition by Pie Stealer

The antimatter equivalent of an electron. It has the same mass as an electron, but opposite charge (positive). Both electrons and positrons are created by photons through a process called pair production. Positrons are sometimes called "antielectrons".
When a positron and electron orbit one another, they make positronium before annihilating shortly after. A positronium atom can bond with hydrogen to make positronium hydride, or with another positronium atom to make di-positronium.
by Pie Stealer September 12, 2015

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The best anime ever, by far. It is about this sponge who works in a fast food place with his friend, Squidward.
Spongebob is a great animu and is known throughout the world
by Pie Stealer April 30, 2015

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When someone adds their own (or another person's) name to Urban Dictionary, either to flatter said person or to insult them. Urban Dictionamers don't realize that no one will read or care about these definitions. In the end, this is just extremely irritating and fills up the voting list (although I doubt the site's moderators will care enough to stop it).
60% of submitted terms are just people Urban Dictionaming themselves.
by Pie Stealer September 12, 2015

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The antimatter equivalent of a neutron. Just like neutrons, antineutrons have no charge. However, antineutrons are made of antiquarks, which have the opposite charges of a neutron's quarks; as such, neutrons and antineutrons will annihilate upon contact.
Antineutrons have the same mass and charge as a neutron.
by Pie Stealer September 12, 2015

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The antimatter equivalent of a proton. It has the same mass as a proton, but opposite charge (negative).
When a proton and antiproton orbit each other, they make protonium. When an antiproton and electron orbit a helium nucleus, they make antiprotonic helium.
by Pie Stealer September 12, 2015

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