dioxin

n. [化]二氧(杂)芑

发音

UK /daɪˈɒksɪn/
US /daɪˈɑksən/

词形变化

dioxins

释义与例句

n.
  1. 1.

    The unsaturated six-membered heterocycle having four carbon atoms, two oxygen atoms, and two double bonds (molecular formula C₄H₄O₂); 1,2-dioxin and 1,4-dioxin.

    可数 化学 不可数
  2. 2.

    The parent compound dibenzo-1,4-dioxin or dibenzo-p-dioxin (molecular formula C₁₂H₈O₂), in which two benzene rings are connected through two oxygen atoms; dibenzodioxin, oxanthrene.

    可数 化学 不可数
  3. 3.

    Any of a broad range of toxic or carcinogenic halogenated polycyclic compounds that occur as byproducts of herbicides.

    二𫫇英

    可数 化学 不可数
  4. 4.

    Any of a broad range of toxic or carcinogenic halogenated polycyclic compounds that occur as byproducts of herbicides.

    The compound 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; molecular formula C₁₂H₄Cl₄O₂), a persistent organic pollutant of the environment which is generally produced as a byproduct of organic synthesis or when organic materials are burned.

    不可数 化学 可数

词汇关系

名词

上位词 1

词源

PIE word *dwóh₁ From di- (prefix meaning ‘double; two’) + ox(ygen) + -in (suffix indicating a neutral chemical compound), a reference to the fact that the compound has two oxygen atoms.

来源:wiktionary