Dictionary.net

A promissory note issued by a bank, payable to the bearer on demand, and designed to circulate as money. Townsend v. People, 4 HI. 32S; Low v. People, 2 Park. Cr. R. (N. Y.) 37: State v. Hays, 21 Ind. 176; State v. Wilkins, 17 Vt 155.

n. A note or bill of exchange, payable to order, and at some future specified time. Bank-book, n. A book in which a person’s bank accounts are entered.

A note for money laid up in a bank, at the sight of which the money is paid.