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TOEFL IELTS BNC: 3595 COCA: 3428
compound
noun /ˈkɒmpaʊnd/
singularcompound
pluralcompounds
  1. 1
    [C] chemistry a chemical substance that consists of two or more elements that together form a molecule. Each different compound has a fixed ratio of elements. For example the water compound (H2O) consists of two hydrogen atoms and one oxygen atom 化合物

    Why do chemical compounds behave as they do? 化合物为什么会有其自身这些特性?

    Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。

     Synonyms and related words
    Types of chemical substance: acid, alkali, base...
    1. a.
      [C/U] something that consists of two or more substances mixed together 混合物

      a herbal compound used for treating headaches 治头疼的混合草药

       Synonyms and related words
      Mixtures and combinations: mixture, blend, combination...
  2. 2
    [C] a combination of things 组合

    John and Steve working together? That's a lethal compound. 约翰和史蒂夫一起工作?那是个很危险的组合。

     Synonyms and related words
    Mixtures and combinations: mixture, blend, combination...
  3. 3
    [C] an enclosed area where a particular group of people live, or where people such as soldiers and prisoners can exercise (围有围墙的)大院(如军营、监狱等)
     Synonyms and related words
  4. 4
    [C] linguistics a combination of two or more words that is used as a single word. The three main types of compound are noun compounds (for example ‘bus stop'), adjective compounds (for example ‘self-centred'), and verb compounds (for example to ‘windsurf'). 复合词
     Synonyms and related words
compound
verb [T] /kəmˈpaʊnd/
present tense
I/you/we/theycompound
he/she/itcompounds
present participlecompounding
past tensecompounded
past participlecompounded
  1. 1
    to make a problem or difficult situation worse 加大(困难);加重

    Their problems are compounded by the fact that Mary's just lost her job. 他们的困难因玛丽刚刚失业而变得更加严重了。

     Synonyms and related words
    To make something worse: worsen, compound, escalate...
  2. 2
    to mix two or more substances together in order to make a new substance or product 使混合;使合成
     Synonyms and related words
compound
adjective [only before noun] /ˈkɒmpaʊnd/
  1. 1
    made up of two or more parts 复合的

    a compound leaf 复叶

     Synonyms and related words
    Consisting of two or more parts, things or features: quadripartite, dual, composite...
  2. 2
    linguistics a compound noun, adjective, or verb is a combination of two or more words (名词、形容词、动词等)复合的
     Synonyms and related words
    Describing words, clauses and sentences: anaphoric, cataphoric, compound...

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