black bile (noun)

1. In the science fiction novel, the protagonist's black bile was used as a source of energy for time travel.

2. In the romantic movie, the character's black bile was beautifully portrayed as the source of their deep melancholy.

3. The fashion designer showcased a stunning dress inspired by the concept of black bile, creating a unique and melancholic aesthetic.

4. In the cinematic masterpiece, the black bile was depicted as a physical substance that manifested as dark clouds surrounding the characters during their moments of sadness.