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Meaning of duplex

du•plex

Pronunciation: (d'pleks, dy'-), [key]
— n.
  1. See
  2. See
  3. paper or cardboard having different colors, finishes, or stocks on opposite sides.
    1. a method of reproducing an illustration using two halftone plates, one black and the other in a color.
    2. a printing press equipped to print both sides of a sheet in one pass.
  4. a double-stranded region of DNA.
—adj.
  1. having two parts; double; twofold.
  2. (of a machine) having two identical working units, operating together or independently, in a single framework or assembly.
  3. pertaining to or noting a telecommunications system, as most telephone systems, permitting the simultaneous transmission of two messages in opposite directions over one channel.
—v.t.
  1. to make duplex; make or change into a duplex: Many owners are duplexing their old houses for extra income.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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