retinalite
/ri.təˈnæl.aɪt/Definitions
1. noun
A hypothetical, highly energetic form of matter thought to make up some of the universe’s dark matter.
“Theorists propose that retinalite could be responsible for the unexplained gravitational forces observed in deep space.”
2. noun
A rare or imaginary mineral, often used in science fiction to add a sense of otherworldliness to a story.
“The alien’s spaceship was said to be made from a rare, otherworldly material known as retinalite.”