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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)

    例句逐字對照、搭配詞、易混淆字

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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 WiktionaryCC BY-SA 4.0)。 原文照列,未經改寫。