a thing consisting of two or more separate things combined together 复合物；混合物 compounds derived from rainforest plants 来自雨林植物的化合物 The air smelled like a compound of diesel and petrol fumes. 空气闻起来像是柴油和汽油混在一起发出的强烈气味。
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chemistry 化学 a substance formed by a chemical reaction of two or more elements in fixed amounts relative to each other 化合物 Extra ExamplesTopics Physics and chemistryb2Dalton believed that the simplest compound of two elements must have one atom of each. 道尔顿认为由两种化学元素组成的最简单化合物必须含有每种元素的一个原子。 Scientists have produced a new chemical compound. 科学家制造了一种新的化合物。 a compound of oxygen and hydrogen 氢氧化合物 Proteins and fats are organic compounds. 蛋白质和脂肪是有机化合物。
Oxford Collocations Dictionaryadjective- chemical
- inorganic
- organic
- …
- form
- make
- produce
- …
- contain something
- be derived from something
- be found in something
- …
- compound of
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grammar 语法 a noun, an adjective or a verb made of two or more words or parts of words, written as one or more words, or joined by a hyphen. Travel agent, dark-haired and bathroom are all compounds. 复合词 Most compound nouns form their plurals in the usual way. 大多数复合名词以通常的方式构成复数。
an area surrounded by a fence or wall in which a factory or other group of buildings stands 有围栏（或围墙）的场地（内有工厂或其他建筑群） life inside the prison compound 监狱大院里的生活
Extra ExamplesPolice are investigating a raid on a secure compound. 警方正在调查一起发生在一处严密把守的区域中的袭击事件。 Angry crowds stormed the presidential palace compound. 愤怒的人群袭击了总统府大楼。
Oxford Collocations Dictionaryadjective- military
- palace
- prison
- …
- in a/the compound
- inside a/the compound
Word Originnoun senses 1 to 3 late Middle English compoune (verb), from Old French compoun-, present tense stem of compondre, from Latin componere ‘put together’. The final -d was added in the 16th cent. on the pattern of expound and propound. noun sense 4 late 17th cent. (referring to such an area in SE Asia): from Portuguese campon or Dutch kampoeng, from Malay kampong ‘enclosure, hamlet’.