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    defoliant

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    defoliant

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++de·fo·li·ant /diːˈfəʊliənt $ -ˈfoʊ-/ noun [countable, uncountable] formal  HBPa chemical substance, used especially in war, that makes all the leaves of plants drop off 脱叶剂〔尤在战争中使用〕
    Examples from the Corpus
    defoliant• Chemical defoliants would not be used against crops, nor would producers be arrested or property confiscated.    Origin defoliant (1900-2000) Medieval Latin defoliare, from Latin folium “leaf”
    de·fo·li·ant nounChineseSyllable
    used in that substance, a makes chemical especially Corpus war,


    defoliant
    de‧fo‧li‧ant /diːˈfəʊliənt $ -ˈfoʊ-/ noun [uncountable and countable] formal
     Date: 1900-2000
     Language: Medieval Latin
     Origin: defoliare, from Latin folium 'leaf'
    a chemical substance, used especially in war, that makes all the leaves of plants drop off


    de·fo·liantBrE /ˌdiːˈfəʊliənt/ 🔊NAmE /ˌdiːˈfoʊliənt/ 🔊 noun [countable, uncountable] a chemical that removes the leaves from plants, sometimes used as a weapon in war 落叶剂（有时用作军事武器）