paper or cardboard having different colors, finishes, or stocks on opposite sides.
- a method of reproducing an illustration using two halftone plates, one black and the other in a color.
- a printing press equipped to print both sides of a sheet in one pass.
Genetics. a double-stranded region of DNA.
having two parts; double; twofold.
(of a machine) having two identical working units, operating together or independently, in a single framework or assembly.
pertaining to or noting a telecommunications system, as most telephone systems, permitting the simultaneous transmission of two messages in opposite directions over one channel.
verb (used with object)
to make duplex; make or change into a duplex: Many owners are duplexing their old houses for extra income.
pair, double, couple, team, polarity, binary, span, duplicity, dichotomy, twin, duet, brace, duality, bifurcation, twain, twins, dos, deuce, dyad, doublet
Origin of duplex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
US and Canadian a duplex apartment or house
a double-stranded region in a nucleic acid molecule
having two parts
machinery having pairs of components of independent but identical function
permitting the transmission of simultaneous signals in both directions in a radio, telecommunications, or computer channel
Word Origin for duplex
C19: from Latin: twofold, from duo two + -plex -fold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1817, "composed of two parts," from Latin duplex, from duo "two" (see two) + -plex, from Greek plax (genitive plakos) "flat surface." The noun sense of "house for two families; two-story apartment" is American English, 1922.
Online Etymology Dictionary, © 2010 Douglas Harper