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 13, 2015
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.
by Pie Stealer September 13, 2015
The best anime ever, by far. It is about this sponge who works in a fast food place with his friend, Squidward.
by Pie Stealer April 30, 2015
Velociraptors are the most intelligent species of dinosaurs. 12,000 years ago, they built high-tech civilizations and were far more advanced than humans are today. However, their version of the Cold War forced most of the velociraptors to escape into space once a high caliber explosive was sent their way. Being such an advanced civilization, the velocirators were able to survive in space and travel from planet to planet. This explosive was responsible for the extinction of every dinosaur (except for the velociraptors, of course). Although the other extremely-advanced velociraptors blamed the explosion on a meteorite, they died from starvation and life was restarted. Now, there are space dinosaurs.
"I met a velociraptor"
by Pie Stealer May 17, 2014
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).
by Pie Stealer September 13, 2015