Definition of "keycard" []

• A usually plastic card with a magnetically coded strip that is scanned in order to operate a mechanism such as a door or an automated teller machine. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Down the stairs, around the corner, through a keycard door and voila, Plague!"
• "Tara followed Jenny down the corridor to a back room with a locked keycard entry."
• "You will require a blue keycard to pass the environmental filters, and even so, such an action is not recommended."