Definition of shrinkage noun from the Oxford Advanced American Dictionary

 

shrinkage

 noun
noun
NAmE//ˈʃrɪŋkɪdʒ//
 
[uncountable]
 
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the process of becoming smaller in size; the amount by which something becomes smaller the shrinkage of heavy industry She bought a slightly larger size to allow for shrinkage.
See the Oxford Advanced Learner's Dictionary entry: shrinkage