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[in-stuh-ley-shuh n] /ˌɪn stəˈleɪ ʃən/
something installed, as machinery or apparatus placed in position or connected for use.
the act of installing.
the fact of being installed.
Military. any more or less permanent post, camp, station, base, or the like, for the support or carrying on of military activities.
Origin of installation
1600-10; < Medieval Latin installātiōn- (stem of installātiō). See install, -ation
Related forms
preinstallation, noun
reinstallation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for installation
  • In some cases, the renewable energy installation even powers equipment needed for site cleanup.
  • Equipment guy came in a few minutes and started the installation.
  • Significant experience in large-scale sound system design, installation and operation preferred.
  • Elevator installation is a mature business, yet change is under way as office space and energy get pricey.
  • Experience the entire building process from factory build to installation to finished product.
  • The installation of more chair-back seats is hardly an epic renovation in the annals of the facilities arms race.
  • Because of the high initial cost of the installation.
  • One installation involved a room wallpapered in a bright pink, yellow and green pattern.
  • installation is fast and easy with this prebuilt, modular unit.
  • Go behind the scenes to see how our homes come together: from factory build to installation to the finished product.
British Dictionary definitions for installation


the act of installing or the state of being installed
a large device, system, or piece of equipment that has been installed
a military establishment usually serving in a support role
an art exhibit often involving video or moving parts where the relation of the parts to the whole is important to the interpretation of the piece
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
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Word Origin and History for installation

"action of installing," mid-15c., of church offices or other positions, from Medieval Latin installationem (nominative installatio), noun of action from past participle stem of installare (see install). Of machinery, etc., "act of setting up," from 1882.

Online Etymology Dictionary, © 2010 Douglas Harper
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