WordReference Random House Unabridged Dictionary of American English © 2025
di•plex
(dī′plex),USA pronunciation adj.
- Radio and Television, Telecommunicationspertaining to the simultaneous operation of two radio transmitters or to the simultaneous reception and transmission of radio signals over a single antenna through the use of two frequencies. Cf. multiplex.
- di-1 + -plex 1875–80