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RFID

  1. radio frequency identification: a technology that uses electronic tags placed on objects, people, or animals to relay identifying information to an electronic reader by means of radio waves: a toll road equipped with an RFID payment system; If you want to ward off identity theft, you should buy a passport case with RFID protection.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for rfid

RFID

abbreviation for
  1. radio-frequency identity (or identification): a technology that uses tiny computer chips to track items such as consumer commodities at a distance
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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