English edit

Etymology edit

di- +‎ -plex

Adjective edit

diplex (not comparable)

  1. (telegraphy) Involving the transmission of two messages in the same direction at the same time.
    Diplex and contraplex are the two varieties of duplex.

Verb edit

diplex (third-person singular simple present diplexes, present participle diplexing, simple past and past participle diplexed)

  1. (radio) Simulcast the same signal on two frequencies.
  2. (radio) Combine two signals using two frequencies onto one cable.