Definition of chip and PIN noun from the Oxford Advanced Learner's Dictionary


chip and PIN

; NAmE
(also chip and pin) [uncountable]
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a system of paying for something with a credit card or debit card in which the card has information stored on it in the form of a microchip and you prove your identity by typing a number (your PIN) rather than by signing your name Chip and PIN is designed to combat credit card fraud.