meth-

a combining form representing methyl, in compound words:

methenamine.

Related Words

methacrylic acid
methacetin
methacrylate
methodology
methoxide
methylisobutenyl ketone

meth-
combining form
or metho-

ETYMOLOGY International Scientific Vocabulary, from methyl

: methyl
methacrylic

meth-|mɛθ|used as comb. form of methyl before a vowel in a few chemical names, as ˈmethacrylic acid, 1-methylacrylic acid, CH₂:C(CH₃)COOH, a colourless compound melting at 15°C, which polymerizes when distilled and which is used in the manufacture of methacrylate resins; so meˈthacrylate, (a) a salt of methacrylic acid; (b) any of the esters of methacrylic acid, some of which are used in making resins by polymerization (see methyl methacrylate s.v. methyl c); meˈthoxide, (a salt of) the anion CH₃O^-, derived from methanol.1865Jrnl. Chem. Soc. XVIII. 142 Ethylic methacrylate is readily decomposed by boiling alcoholic potash.Ibid., Silver methacrylate is best obtained pure by precipitating ammonium methacrylate with nitrate of silver.1936Industr. & Engin. Chem. Mar. 269/1 The monomeric methacrylates cannot be stored or transported with safety.1962Economist 6 Oct. 74/3 An airdrying paint (based on methacrylates) has been used..for several years.1964G. H. Haggis et al. Introd. Molecular Biol. iv. 91 (caption) A thin section preparation showing T₂ bacteriophage infection of E. coli bacteria (osmium tetroxide fixation and methacrylate embedding technique..).1865Jrnl. Chem. Soc. XVIII. 142 Methacrylic acid is a colourless oil, which..possesses a faint odour, like pyrogallic acid.1889G. M'Gowan tr. Bernthsen's Text-bk. Org. Chem. 166 Meth-acrylic acid..is found in small quantity in Roman camomile oil, and smells like decaying mushrooms.1972Materials & Technol. IV. xii. 428 Technical production of methacrylic acid employs the oxidation of isobutene by a mixture of nitric acid and nitrogen dioxide to hydroxyisobutyric acid, which is then dehydrated.1885Jrnl. Chem. Soc. XLVIII. 1031 Anhydrous sodium methoxide, NaOMe, was prepared by heating the solution [of sodium in methyl alcohol] at 180–200° in a current of dry hydrogen.1934Ibid. 1204 The agreement between the values for the mobility of the methoxide ion is fair.1965New Scientist 26 Aug. 513/3 Ordinary methyl alcohol is sufficiently acidic to form salts with alkali metals like sodium and potassium, the ‘methoxides’, whose general formula is CH₃O^-M⁺ (where M⁺ is any metal ion).

meth- /mɛθ, mi:θ/ combining form.

ORIGIN: from methyl.

Used in forming names of substances, esp. drugs, containing methyl groups.

meth-
combining form
or metho-
Etymology: International Scientific Vocabulary, from methyl
: methyl
< methacrylic >
< methobromide >

meth-

Prefix

organic chemistry Used to denote the presence of a single axial atom when forming names of organic compounds for methyl derivatives.

Etymology

From methyl.

Derived terms

methacrylic

methamine

methane

methanol

methylene

词汇	meth-
词根词缀	AHD Collins Dictionary.com MWCD OED SOED Webster Wiktionary meth- pref.（前缀） Methyl: 甲基： methane. 甲烷语源 From methyl 源自 methyl meth- combining form indicating a chemical compound derived from methane or containing methyl groups ⇒ methacrylate resin meth- 1 a combining form representing methyl, in compound words: methenamine. Related Words methacrylic acid methacetin methacrylate methodology methoxide methylisobutenyl ketone meth- combining form or metho- ETYMOLOGY International Scientific Vocabulary, from methyl : methyl methacrylic meth-\|mɛθ\|used as comb. form of methyl before a vowel in a few chemical names, as ˈmethacrylic acid, 1-methylacrylic acid, CH₂:C(CH₃)COOH, a colourless compound melting at 15°C, which polymerizes when distilled and which is used in the manufacture of methacrylate resins; so meˈthacrylate, (a) a salt of methacrylic acid; (b) any of the esters of methacrylic acid, some of which are used in making resins by polymerization (see methyl methacrylate s.v. methyl c); meˈthoxide, (a salt of) the anion CH₃O^-, derived from methanol.1865Jrnl. Chem. Soc. XVIII. 142 Ethylic methacrylate is readily decomposed by boiling alcoholic potash.Ibid., Silver methacrylate is best obtained pure by precipitating ammonium methacrylate with nitrate of silver.1936Industr. & Engin. Chem. Mar. 269/1 The monomeric methacrylates cannot be stored or transported with safety.1962Economist 6 Oct. 74/3 An airdrying paint (based on methacrylates) has been used..for several years.1964G. H. Haggis et al. Introd. Molecular Biol. iv. 91 (caption) A thin section preparation showing T₂ bacteriophage infection of E. coli bacteria (osmium tetroxide fixation and methacrylate embedding technique..).1865Jrnl. Chem. Soc. XVIII. 142 Methacrylic acid is a colourless oil, which..possesses a faint odour, like pyrogallic acid.1889G. M'Gowan tr. Bernthsen's Text-bk. Org. Chem. 166 Meth-acrylic acid..is found in small quantity in Roman camomile oil, and smells like decaying mushrooms.1972Materials & Technol. IV. xii. 428 Technical production of methacrylic acid employs the oxidation of isobutene by a mixture of nitric acid and nitrogen dioxide to hydroxyisobutyric acid, which is then dehydrated.1885Jrnl. Chem. Soc. XLVIII. 1031 Anhydrous sodium methoxide, NaOMe, was prepared by heating the solution [of sodium in methyl alcohol] at 180–200° in a current of dry hydrogen.1934Ibid. 1204 The agreement between the values for the mobility of the methoxide ion is fair.1965New Scientist 26 Aug. 513/3 Ordinary methyl alcohol is sufficiently acidic to form salts with alkali metals like sodium and potassium, the ‘methoxides’, whose general formula is CH₃O^-M⁺ (where M⁺ is any metal ion). meth- /mɛθ, mi:θ/ combining form. ORIGIN: from methyl. Used in forming names of substances, esp. drugs, containing methyl groups. meth- combining form or metho- Etymology: International Scientific Vocabulary, from methyl : methyl < methacrylic > < methobromide > meth- Prefix organic chemistry Used to denote the presence of a single axial atom when forming names of organic compounds for methyl derivatives. Etymology From methyl. Derived terms methacrylic methamine methane methanol methylene See also eth- prop- but-
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combining form

meth-

Related Words

meth-

Prefix

Etymology

Derived terms

See also