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mag card

[mag] /mæg/
noun
1.
Computers. a plastic or paper card with a magnetizable layer on which data can be recorded and from which data can be read.
2.
such a card used in access-control systems, as for automatically unlocking doors.
Also called magnetic card.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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