Word · Frequency #28282
phenols
酚；酚类化合物
phenols is the plural of phenol.
核心释义
也常特指苯酚
any of a class of weakly acidic organic compounds whose molecules contain one or more hydroxyl groups
- 1.
苯酚
A caustic, poisonous, white crystalline compound, C6H5OH, derived from benzene and used in resins, plastics, and pharmaceuticals and in dilute form as a disinfectant and antiseptic; once called carbolic acid
- 2.
一类弱酸性有机化合物；分子含有一个或多个羟基
any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups
- 3.
酚类
Any of a class of aromatic organic compounds having at least one hydroxyl group attached directly to the benzene ring (or other aromatic ring)
- 4.
一种有毒的白色可溶性结晶酸性苯衍生物；用于制造业及作为消毒剂和防腐剂；内服有毒
a toxic white soluble crystalline acidic derivative of benzene; used in manufacturing and as a disinfectant and antiseptic; poisonous if taken internally
苯酚；一类弱酸性有机化合物；分子含有一个或多个羟基；酚类；一种有毒的白色可溶性结晶酸性苯衍生物；用于制造业及作为消毒剂和防腐剂；内服有毒；石炭酸
用法In use
In chemistry class, we learned that phenol is used to make plastics and resins.
用法提示：此处phenol为不可数名词，指苯酚这种有机化合物。
Some phenols occur naturally in plants and help protect them from insects.
用法提示：此处phenols为复数形式，表示酚类化合物这一类别。
The lab technician handled the phenol carefully because it can irritate the skin.
用法提示：此处phenol为不可数名词，指具体的化学品苯酚。
phenol + be + noun phrase
phenol 指苯酚这种具体物质时通常用作不可数名词，不加冠词。
Phenol is a weakly acidic organic compound.
苯酚是一种弱酸性有机化合物。
a phenol + contain(s) + noun phrase
a phenol 是可数用法，表示酚类化合物中的某一个具体种类。
相关词与表达Connections
搭配Collocations
- phenol formaldehyde resin
- 酚醛树脂
- Phenol formaldehyde resin is widely used in adhesives and molded products.酚醛树脂广泛用于粘合剂和模压制品。
- phenol red
- 酚红（pH指示剂）
- Add a drop of phenol red to the culture medium to detect pH changes.向培养基中滴加一滴酚红以检测pH变化。
- phenol coefficient
- 酚系数（消毒剂效力指标）
- The phenol coefficient compares a disinfectant's germicidal power with that of phenol.酚系数将消毒剂的杀菌效力与苯酚进行比较。
- dilute phenol solution
- 稀苯酚溶液
- A dilute phenol solution can be used as a mild antiseptic.稀苯酚溶液可用作温和的防腐剂。
- phenol hydroxyl group
学习提示Learner notes
记忆技巧Memory Tip
phenol 开头的 phe 近似‘酚’的拼音 fen，词尾 -ol 常见于酚/醇类，记住它含羟基 -OH。
语境与语域Context & Register
语域：formal 常见场景：化学、医药、工业 苯酚属于化学等专业领域的术语，多用于学术、医疗或工业技术场合，日常口语中比较少见。
语法说明Grammar Note
指苯酚这种化学物质时通常不可数；指酚类化合物中的一种时可用复数 phenols。
发音与拼写Pronunciation & Spelling
The -ol words share the spelling ending -ol with phenol, but they are pronounced with /-ɔːl/ (or /-ɒl/ in British English), not with phenol's /-ɑl/ ending; none of them rhymes with phenol. Words like 'final' look similar in spelling but are pronounced /ˈfaɪnəl/, so they are not rhymes either.
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.