Meaning of diplex

di•plex

Pronunciation: (dī'plex), [key]
— adj.
  1. pertaining 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.