one-billionth (noun)

1. In the science fiction novel, the protagonist discovers a one-billionth scale model of the universe inside a tiny sphere.

2. In the anime series, the main character possesses the ability to shrink himself to the one-billionth of his original size.

3. The horror movie depicted a creature so small and menacing that it could fit into a one-billionth of a human blood cell.

4. According to the mythology of ancient civilization, the gods created humans by shaping them out of the one-billionth part of stardust.