du·plex·er noun \ˈdü-ˌplek-sər also ˈdyü-\
: a switching device that permits alternate transmission and reception with the same radio antenna
First Known Use of DUPLEXER
Learn More About DUPLEXER
Seen & Heard
What made you want to look up duplexer? Please tell us where you read or heard it (including the quote, if possible).