pith helmet (noun)

1. The pith helmet was used as inspiration for the design of the roof of the tropical-themed resort.

2. In the cartoon, the adventurous explorer character is always seen wearing his trusty pith helmet.

3. In the fantasy novel, the protagonist discovers a magical pith helmet that gives them the ability to communicate with animals.

4. During the exploration of Africa in the 19th century, explorers like Dr. Livingstone relied on pith helmets for protection from the sun and heat.