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Definition of ballcock noun from the Oxford Advanced Learner's Dictionary

ballcock

noun
 
/ˈbɔːlkɒk/
 
/ˈbɔːlkɑːk/
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  1. a device with a floating ball that controls the amount of water going into a container, for example the water tank of a toilet
ripple effect
noun
 
 
From the Topic
Change, cause and effect
C2
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