What Does Network Segment Mean?

A network segment is a physically connected segment of a network. This commonly consists of fiber-optic or Ethernet cable or a Wi-Fi connection.

Techopedia Explains Network Segment

Network segment commonly refers to a specific connection between two computers, or between two pieces of hardware such as a bridge or router. In general, the term refers to a specific part of a network topology, which represents the way that the hardware system is set up. Various common network topologies include: