quadruplex

adjective quad·ru·plex \ˈkwädrəˌpleks\

Definition of quadruplex

  1. :  being or relating to a system of telegraphy by which two messages in each direction may be sent simultaneously over one wire

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of quadruplex

Latin quadruplic-, quadruplex fourfold, from quadri- + -plic-, -plex -fold — more at simple


Seen and Heard

What made you want to look up quadruplex? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a trip made at another's expense

Get Word of the Day daily email!