Best Answer: They have an expiration date because they have chemicals in them they will lose their potency if they are not used it time, and they will dry out and become useless. It doesnt matter if they stay in the packet, not opened, ,they will still expire, same as food...lol. Source(s): amanda Â· 7 years ago.
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internationally renowned meaning, internationally renowned definition | English Cobuild dictionary. international. 1 adj International means between or involving different countries. ...an international agreement against exporting arms to that country., ...emergency aid from the international community. â¦ internationally adv usu ADV adj/-ed, also ADV with cl, ADV after v. There are only two internationally recognised certificates in Teaching English as a Foreign Language... 2 n-count In sport, an international is a game that is played between teams representing two different countries. ...the midweek international against England. 3 n-count An international is a member of a country's sports team. ...a former England international.