opisthotonos (noun)

1. In the science fiction novel, the protagonist experienced opisthotonos after being exposed to a powerful electromagnetic field.

2. In the comic book series, the superhero's enemy used his telekinetic powers to induce opisthotonos in innocent victims.

3. As the two lovers shared a passionate kiss, the woman suddenly showed symptoms of opisthotonos due to the intense emotional experience.

4. In the world of fantasy, opisthotonos could be a magical curse inflicted on those who defy the dark sorcerer's will.