/ ɪkˈstrækʃn; NAmE / noun
1.
[ U , C ] the act or process of removing or obtaining sth from sth else :
oil / mineral / coal, etc. extraction
the extraction of salt from the sea
2.
[ U ] of ... extraction ( formal ) having a particular family origin :
an American of Hungarian extraction
3.
[ C ] ( technical ) the removal of a tooth
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WORD ORIGIN
late Middle English : via Old French from late Latin extractio(n-) , from Latin extrahere draw out, from ex- out + trahere draw.