Longman Dictionary of Contemporary English homepage

ballcock

noun
     
Related topics: Household, Technology
ball‧cock [countable]
TDH a hollow floating ball on a stick that opens and closes a hole, to allow water to flow into a container, for example in a toilet

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary