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

 

leakage

 noun
noun
BrE BrE//ˈliːkɪdʒ//
 
; NAmE NAmE//ˈliːkɪdʒ//
 
[countable, uncountable]
 
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an amount of liquid or gas escaping through a hole in something; an occasion when there is a leak a leakage of toxic waste into the sea Check bottles for leakage before use.
See the Oxford Advanced American Dictionary entry: leakage