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English definition of “shelf life”

shelf life

noun [C usually singular]     (plural shelf lives)
the length of time that a product , especially food , can be kept in a shop before it becomes too old to be sold or used: Fresh fruit has a very short shelf life .Food - general words the length of time that something remains useful , popular , or successful : These days many marriages have a fairly short shelf life (= don't last very long ).
(Definition of shelf life noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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