Short for Dirac sword, these swords utilize negative energy derived from the Dirac sea (a property in the Dirac Hole Theory) to create delusions that are sent to dead spots in the visual parts of every humans' brain, which in turn makes the delusion real in the form human perception. Used by gigalomaniacs in the show Chaos; Head.
When my friend Seria pulled out her di-sword, the world around the blade became distorted as if the sword wasn't supposed to exist.
by Knight Hart May 2, 2017