duo-


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duo-

pref.
Two: duopsony.

[Latin, from duo, two; see dwo- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

duo-

combining form
indicating two: duotone.
[from Latin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

du•o

(ˈdu oʊ, ˈdyu oʊ)

n., pl. du•os.
1. duet.
2. two persons commonly associated with each other; couple.
3. two things ordinarily placed or found together; a pair: a duo of lovebirds.
[1580–90; < Italian < Latin: two]

duo-

a combining form meaning “two”: duotone.
[comb. form of Greek dýo, Latin duo two]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
This latest offerings will be available through company's vast distribution network across India at an appealing price of Polo DUO- INR 1500/- and Grace DUO - INR 1400/-
The name "Duo- Touch" refers to the new dual-mode touch panel, which provides both a passive touch screen and standard digitizer, or "active," touch screen.
All Itronix rugged products, including the Duo- Touch Tablet PC, are available directly through Itronix by calling 800/441-1309 or 509/624-6600.