eradicationn.
英 ɪ,rædɪ'keɪʃ(ə)n | 美 ɪ,rædɪ'keʃən
中文n. 消灭，扑灭；根除
词根词源
eradication (n.)early 15c., from Latin eradicationem (nominative eradicatio), noun of action from past participle stem of eradicare "root out, extirpate, annihilate," from assimilated form of ex- "out" (see ex-) + radix (genitive radicis) "root" (see radish).
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