"You canker blossom!" 3 Shakespearean Insults
Transmitter-receiver, any device that performs both functions.
For example, on an Ethernet network, a transceiver is the hardware that connects a host interface (e.g. an Ethernet controller) to a local area network. Ethernet transceivers contain electronics that apply signals to the cable and sense other host's signals and collisions. See also CSMA/CD.