extraction
/ɪkˈstrækʃn; ɪk`strækʃən/ n
1
(a) [U] action of extracting (extract 1a) 取出; 拔出; 强索
the extraction of a tooth 拔牙
the extraction of financial contributions 硬性摊派捐款
the extraction of information 打探消息
[attrib 作定语]
an extraction process at a diamond mine 钻石矿的开采过程.
(b) [C] instance of extracting a tooth 拔牙
He needs two extractions. 他需要拔掉两颗牙齿.
2 [U] (fml 文) descent; parentage 血统; 出身; 家世
an American of Hungarian extraction 匈牙利血统的美国人.