Debit card

from WordNet (r) 3.0 (2006)

debit card
    n 1: a card (usually plastic) that enables the holder to
         withdraw money or to have the cost of purchases charged
         directly to the holder's bank account

from The Collaborative International Dictionary of English v.0.48

Debit card \Deb"it card`\, n. [See {debit}.]
   a small usually plastic card with a magnetic coded number,
   similar to a credit card, which is used to pay for purchases
   by the electronic deduction of a sum of money (a debit)
   directly from the card-holder's bank account. Such cards do
   not require the establishment of a credit line, and such
   transactions do not incur any interest payments.
   [1913 Webster]