purgative

purgative
[ˈpəːgətɪv]
adjective
  1. strongly laxative in effect
    催泻的,通便的
    ■(figurative)having the effect of ridding someone of unwanted feelings or memories
    (喻)净化的;清洗的;清除的
    the purgative action of language.
    语言的净化作用。
noun
  1. a laxative
    泻剂
    ■(figurative)a thing that rids someone of unwanted feelings or memories
    (喻)清心剂
    confrontation would be a purgative.
    对峙会起到清心的作用。
语源
  1. late Middle English: from Old French purgatif, -ive, from late Latin purgativus, from purgat- 'purified', from the verb purgare (see purge)
英语宝典
考试词汇表