monobasic acid (noun)

1. In the novel, the protagonist uses a monobasic acid to dissolve a key piece of evidence.

2. The ancient scriptures mention a mythical monobasic acid that was believed to possess divine healing powers.

3. The horror story revolved around a cursed monobasic acid that turned anyone who came in contact with it into a sinister creature.

4. In the comic book series, the superhero's arch-nemesis experimented with a monobasic acid to create a deadly weapon.