• synonyms


  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.
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Compare multiplex.

Origin of diplex

First recorded in 1875–80; di-1 + -plex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for diplex

Historical Examples

  • Diplex, dī′pleks, adj. pertaining to the transmission of two simultaneous messages over one wire in the same direction.

    Chambers's Twentieth Century Dictionary (part 1 of 4: A-D)


diplex in Science


  1. Capable of simultaneous transmission or reception of two electronic or radio signals through a single channel or component, as the simultaneous transmission of two radio signals through a single antenna.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.