- 1 [uncountable, countable] the act or process of removing or obtaining something from something else oil/mineral/coal, etc. extraction the extraction of salt from the ocean Commercial peat extraction is destroying many threatened habitats. Methods of extraction vary from mine to mine.
- 2[uncountable] of… extraction (formal) having a particular family origin an American of Hungarian extraction
- 3[countable] (technology) the removal of a tooth I didn't like having my teeth drilled, but extractions were infinitely worse.
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