Dictionary

expiration date

noun

: the date when something (such as a credit card or driver's license) can no longer legally or officially be used

: the date when something (such as milk or medicine) can no longer be sold because it may no longer be good or effective

Full Definition of EXPIRATION DATE

1
:  the date after which something (as a credit card) is no longer in effect
2
:  the date after which a product (as food or medicine) should not be sold because of an expected decline in quality or effectiveness

Examples of EXPIRATION DATE

  1. Check the expiration date on the bottle to make sure the medicine is still good.

First Known Use of EXPIRATION DATE

circa 1946

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