poppet (noun)

1. The fashion-forward designer incorporated unique poppet-shaped elements into her latest clothing collection.

2. In the comic strip, the robotic character had a poppet valve built into its chest as a power source.

3. During the Industrial Revolution, poppet valves revolutionized the efficiency of steam engines.

4. The ceremony involved the opening of a sacred poppet valve to release blessings upon the worshippers.