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[kuh n-sol-i-dey-shuh n] /kənˌsɒl ɪˈdeɪ ʃən/
an act or instance of consolidating; the state of being consolidated; unification:
consolidation of companies.
solidification; strengthening:
consolidation of principles and beliefs.
something that is or has been consolidated; a consolidated whole.
  1. a statutory combination of two or more corporations.
  2. the union of two or more claims or actions at law for trial or appeal.
(initial capital letter) a steam locomotive having a two-wheeled front truck, eight driving wheels, and no rear truck.
Pathology. the process of becoming solid, as changing of lung tissue from aerated and elastic to firm in certain diseases.
Geology. lithification.
Origin of consolidation
1350-1400; Middle English (< Anglo-French) < Late Latin consolidātiōn- (stem of consolidātiō), equivalent to Latin consolidāt(us) (see consolidate) + -iōn- -ion
Related forms
consolidative, adjective
nonconsolidation, noun
preconsolidation, noun
proconsolidation, adjective
reconsolidation, noun
unconsolidation, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for consolidation
Contemporary Examples
Historical Examples
  • The parties could agree neither on terms of consolidation nor on boundaries.

  • In all these acts of consolidation the influence of Mr. Wade was active and powerful.

  • The consolidation still required the sanction of the legislature.

    The Railroad Question William Larrabee
  • One of the roads entering into the consolidation was the Utica and Schenectady.

    The Railroad Question William Larrabee
  • I—I—ugh, ugh, I know what you want:—a consolidation and annihilation of the States.

British Dictionary definitions for consolidation


the act of consolidating or state of being consolidated
something that is consolidated or integrated
  1. the combining of two or more actions at law
  2. the combination of a number of Acts of Parliament into one codifying statute
(geology) the process, including compression and cementation, by which a loose deposit is transformed into a hard rock
(psychol) the process in the brain that makes the memory for an event enduring; the process is thought to continue for some time after the event
Derived Forms
consolidative, adjective
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 consolidation

c.1400, from Late Latin consolidationem (nominative consolidatio), noun of action from past participle stem of consolidare "to make firm, consolidate," from com- "together" (see com-) + solidare "to make solid," from solidus (see solid).

Online Etymology Dictionary, © 2010 Douglas Harper
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consolidation in Medicine

consolidation con·sol·i·da·tion (kən-sŏl'ĭ-dā'shən)
The process of becoming a firm solid mass, as in an infected lung when the alveoli are filled with exudate.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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