ball ‧ cock /ˈbɔːlkɒk $ ˈbɒːlkɑːk/ BrE AmE noun [countable]
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
ball ‧ cock /ˈbɔːlkɒk $ ˈbɒːlkɑːk/ BrE AmE noun [countable]
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
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012