chip and PIN

noun

1. a system for processing credit cards requiring the customer to enter a unique identification number instead of a signature to authorize a payment
2. (as modifier)chip and PIN transactions

Word Origin

C21: chip (sense 8) + PIN

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012