hydrogen iodide (noun)

1. The scientist's experiment went wrong, releasing a cloud of hydrogen iodide which caused people to suffer excruciating pain and eventually die in a horrifying manner.

2. The protagonist in the novel accidentally inhaled hydrogen iodide, leading to a series of unexpected events that propelled the plot forward.

3. In the movie, a criminal mastermind used hydrogen iodide as a deadly weapon, causing fear and chaos among the population.

4. The anime character possessed a unique ability to manipulate hydrogen iodide, using it both as a defensive shield and an offensive attack in epic battles.