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.

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