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Methyl is a chemistry word for a very small group of atoms — one carbon atom joined to three hydrogen atoms — that chemists use as a building block when naming and describing many chemicals, such as methyl alcohol. You will really only meet this word in a science class, not in everyday conversation.
甲基(化學名詞)
組成This word probably comes from Greek words for 'wine' and 'wood', because the alcohol it is named after was once made by distilling wood.
同家族的字
- methanolbuilt from 'methyl' — methanol is the simplest alcohol containing a methyl group
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法,原文照列,我們還沒有寫成教學內容。上面的說明才是我們自己寫的;有些用法可能上面已經講過了。
methylnoun/ˈmɛθaɪl/
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chemistrynatural-sciencesorganic-chemistryThe univalent hydrocarbon radical, CH₃-, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical.
- You might point out in the theory of oxidation of oils, in development of rancidity in oils, that many methyls accelerate this oxidation of oils. I do not want to burden you with a lecture on chemistry but there are some methyls like iron which has both a valence of two and of three. Another example is cobalt which has a valence of both two and three.
- The southern acetates must be decarboxylated to methyls.
資料來源:英文維基詞典 English Wiktionary(CC BY-SA 4.0)。 原文照列,未經改寫。