chip and PIN

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chip and PIN

n
1. (Electronics)
a. a system for processing credit cards requiring the customer to enter a unique identification number instead of a signature to authorize a payment
b. (as modifier): chip and PIN transactions.
2. (Commerce)
a. a system for processing credit cards requiring the customer to enter a unique identification number instead of a signature to authorize a payment
b. (as modifier): chip and PIN transactions.
[C21: chip (sense 8) + PIN]