magstripe

noun

mag·​stripe ˈmag-ˌstrīp 

plural magstripes

: the magnetic strip on a swipe card that contains personal information

—often used before another noun

a magstripe card

… American credit cards use the 40-year-old magstripe technology to process transactions …

—Bill Saporito

Word History

Etymology

mag(netic) entry 1 + stripe entry 3

First Known Use

1973, in the meaning defined above