Meaning of the word ballcock in English

What does ballcock mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

ballcock

US /ˈbɔːlkɑːk/
UK /ˈbɔːl.kɒk/
"ballcock" picture

Noun

a device for controlling the water level in a cistern, consisting of a floating ball that operates a valve

Example:
The toilet was constantly running because of a faulty ballcock.
He had to replace the old ballcock in the cistern.