myasthenia gravis (noun)

1. In the episode of the cartoon show, the main character was portrayed as having myasthenia gravis and struggled with constant fatigue and muscle weakness.

2. The superhero in the comic book series developed myasthenia gravis, causing him to lose his ability to fight crime with strength and agility.

3. In the fictional world of the fantasy novel, the protagonist battles against the evil sorcerer while also dealing with the challenges of myasthenia gravis, making every quest a true test of their endurance.

4. The central character in the anime series bravely faced the adversities of myasthenia gravis, pushing through the hardship of muscular weakness to protect their loved ones.