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extraction

[ik-strak-shuh n] /ɪkˈstræk ʃən/
noun
1.
an act or instance of extracting:
the extraction of a molar.
2.
the state or fact of being extracted.
3.
descent or lineage:
to be of foreign extraction.
4.
something extracted; extract.
Origin
late Middle English
1375-1425
1375-1425; late Middle English extraccioun < Late Latin extractiōn- (stem of extractiō). See extract, -ion
Related forms
nonextraction, noun
overextraction, noun
preextraction, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for extraction
  • Employment seems to be split between agriculture and energy extraction.
  • extraction is toxic, environmentally destructive and energy-intensive.
  • The old empires were direct exercises in territorial domination, cultural subjugation, and the extraction of wealth.
  • The value of a resource depends on human needs and the technology available for its extraction and use.
  • The extraction of natural gas involves drilling underground and removing the gas with a pump.
  • Chimpanzees forcibly jabbed tools into hollow trunks or branches multiple times and smelled and/or licked them upon extraction.
  • The cruelest twist is that half a century of oil extraction in the delta has failed to make the lives of the people better.
  • They arrange for extraction and recycling of reusable portions of hazardous wastes, such as solvents and metals.
  • Shea butter is available in different grades, which depend on the extraction method.
  • Oil shale extraction is similarly difficult and energy-intensive.
British Dictionary definitions for extraction

extraction

/ɪkˈstrækʃən/
noun
1.
the act of extracting or the condition of being extracted
2.
something extracted; an extract
3.
  1. the act or an instance of extracting a tooth or teeth
  2. a tooth or teeth extracted
4.
origin, descent, lineage, or ancestry: of German extraction
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 extraction
n.

early 15c., from Old French estraction (12c.) or directly from Medieval Latin extractionem (nominative extractio), noun of action from past participle stem of Latin extrahere (see extract (v.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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extraction in Medicine

extraction ex·trac·tion (ĭk-strāk'shən)
n.

  1. The act of extracting or the condition of being extracted.

  2. Something obtained by extracting; an extract.

  3. The removal by withdrawing or pulling out of a tooth from its socket.

  4. Removal of a baby from the genital canal in assisted delivery.

  5. The active portion of a drug.

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