money that can be used to buy things on the Internet, but that does not exist in a physical form or belong to any particular country 电子现金
Examples from the Corpus
electronic cash• So she places her smart card containing electronic cash provided as part of a bank service into the smart-card reader.• Of course, electronic cash does not have to be held on a Card.• Mostly, they hand over a credit-card number, but some transactions already use electronic cash.