Receptor: 1. In cell biology, a structure on the surface of a cell (or inside a cell) that selectively receives and binds a specific substance. There are many receptors.
The most common is EPNS (Electro Plated Nickel Silver) but many other symbols are used: 1  EPBM (Electro Plated Britannia Metal). 2  EPCA (Electro Plated Copper Alloy). 3  ESM (Electro Plated Silver Mounts).he most common is EPNS (Electro Plated Nickel Silver) but many other symbols are used: 1  EPBM (Electro Plated Britannia Metal). 2  EPCA (Electro Plated Copper Alloy). 3  ESM (Electro Plated Silver Mounts).
DEFINITION of 'Electronic Payments Network-EPN'. An electronic automated clearing house (ACH) that serves as the sole ACH for the private sector in the United States.The Electronic Payments Network handles numerous types of credit transfers, such as payroll payments, dividends, etc., as well as debit transfers, such as loan payments and insurance premiums.Next Up.n the modern financial marketplace, the EPN's use of electronic transfers of money has increased the efficiency and timeliness of business transactions. If you are paid by direct deposit by your employer, chances are the EPN is involved in the transaction.