Noun
BNC connector (plural BNC connectors)
(telecommunications) A connector for a coaxial cable which keeps the central wire from touching the cable's outer shield.
10BASE2 cable showing the BNC connector end. 10BASE2 cable with a BNC T-connector. 10BASE2 cable end terminator. Source: Internet
Instead of a single BNC connector that was inserted into a T-connector placed inline in the cable, the AAUI transceiver had two BNC connectors, one on each side to which the cables were attached. Source: Internet