Definitions

1. noun

A small rotating head or valve in a steam engine, used to control the flow of steam.

“The engineer adjusted the poppethead to optimize the engine’s performance.”

2. noun

A small rotating valve used to control the flow of a fluid in various machines and equipment.

“The maintenance team had to repair the faulty poppethead in the hydraulic system.”

3. noun

A valve or head, especially in a steam engine or a similar device, that rotates to open and close an outlet.

“The old steam engine featured a poppethead that needed constant adjustment.”