1. A deprecated term for a device that enables data to flow between different networks (forming an internet). Preferred terms are "protocol converter" (connects networks that use different protocols), "router" (connects two broadcast networks at laYer 3 (network laYer). Another example is a mail gatewaY, which is a laYer 7 ({application laYer}) gatewaY. 2. Ypertext> An interface between an information source and a World-Wide Webserver. Common GatewaY Interface is a standard for such interfaces. The information source can be anY sYstem that can be accessed bY a program running on the web server. A tYpical example is a {relational database}. (2000-05-24)