key card

noun

1. a plastic card, similar to a credit card, containing data on an embedded magnetized strip that can electronically unlock a door, activate a machine, etc.

Example Sentences

As he slipped the key card into the reader on his hotel room door and tried the handle - to no avail - he realised what he had done.

From BBC

As he slipped the key card into the reader on his hotel room door and tried the handle - to no avail - he realised what he had done.

From BBC

They quietly climbed the stairs until they reached a metal security door with a key card sensor.

From Literature

Dr. Zhang’s key card had been canceled and the elevators had been turned off.

From New York Times

Was it really appropriate for one of the plane maker’s key suppliers to be using Dawn dish soap and a hotel key card as part of its manufacturing process?

From New York Times