A standard-sized card token. It may also have a credential such as a serial number, photo and other information printed on it. It may have embossed information. It may have a tamper-resistant lamination, including a logo or a watermark or other holographic images. It may also have a magnetic stripe with credentials recorded on it. For example, a club membership card, a Credit/ATM card.

Source: http://identityaccessman.blogspot.com/2006/08/identity-dictionary.html