Positron

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 October 27, 2015

Positron

A person is overly positive in a negative or neutral situation (usually when losing something or someone): at a funeral, after losing a game, or when the room is just moping around

The room was mourning Aunt Sally's death, but Cole Grable was being a positron.

by CramerBanana June 14, 2025