Except as provided in subsections (c) and (d), "negotiable instrument" means an unconditional promise or order to pay a fixed amount of money, with or without interest or other charges described in the promise or order, if it:
"Instrument" means a negotiable instrument.
An order that meets all of the requirements of subsection (a), except paragraph (1), and otherwise falls within the definition of "check" in subsection (f) is a negotiable instrument and a check.
A promise or order other than a check is not an instrument if, at the time it is issued or first comes into possession of a holder, it contains a conspicuous statement, however expressed, to the effect that the promise or order is not negotiable or is not an instrument governed by this chapter.
An instrument is a "note" if it is a promise and is a "draft" if it is an order. If an instrument falls within the definition of both "note" and "draft," a person entitled to enforce the instrument may treat it as either.
"Check" means (i) a draft, other than a documentary draft, payable on demand and drawn on a bank or (ii) a cashier's check or teller's check. An instrument may be a check even though it is described on its face by another term, such as "money order."
"Cashier's check" means a draft with respect to which the drawer and drawee are the same bank or branches of the same bank.
"Teller's check" means a draft drawn by a bank (i) on another bank, or (ii) payable at or through a bank.
"Traveler's check" means an instrument that (i) is payable on demand, (ii) is drawn on or payable at or through a bank, (iii) is designated by the term "traveler's check" or by a substantially similar term, and (iv) requires, as a condition to payment, a countersignature by a person whose specimen signature appears on the instrument.
"Certificate of deposit" means an instrument containing an acknowledgment by a bank that a sum of money has been received by the bank and a promise by the bank to repay the sum of money. A certificate of deposit is a note of the bank.