ballcock
Longman Dictionary of Contemporary English 5++LDOCE 5++ball·cock /ˈbɔːlkɒk $ ˈbɒːlkɑːk/ noun [countable] TDHa 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 〔抽水马桶等中的〕浮球阀，浮球栓，浮球旋塞
Examples from the Corpus
ballcock• Automatic top-up with a ballcock will allow all water in a new pool to pass first through the Eradicator.• It had Hayley Syndrome-a missing ballcock.• Meanwhile, I had to go up into the roof and push down the ballcock when things went wrong.ball·cock nounChineseSyllable
on that Corpus hollow stick opens and floating a ball a
ballcock
ball‧cock /ˈbɔːlkɒk $ ˈbɒːlkɑːk/
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/
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