pneumatophore (noun)

1. In the animated series, the character had a pneumatophore on its head that allowed it to breathe underwater.

2. In the futuristic novel, the alien species had evolved pneumatophores to extract oxygen from their inhospitable planet.

3. In the comic book series, the superhero utilized the pneumatophore to survive in the toxic swamps of the city.

4. Why did the plant start floating? Because it wanted to show off its new pneumatophore!