chip and PIN

Từ điển Oxford Advanced Learner 8th

ˌchip and ˈPIN 7 [chip and PIN] BrE NAmE (also chip and pin) noun uncountable
a system of paying for sth 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.