دیکشنری آنلاین تحلیلگران ( معنی فارسی methyl )

methyl

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methyl noun. ['mi:Ɵʌɪl, 'mɛƟ-, -Ɵɪl]

(شیمی). متیل، ریشه یک ظرفیتی هیدروکربن بفرمولCH3

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» methyl
» methyl alcohol
» methyl blue
» methyl bromide
» methyl orange

English Dictionary

methyl noun. ['mi:Ɵʌɪl, 'mɛƟ-, -Ɵɪl] M19.
[French méthyle, German Methyl, back-form. from French méthylène, German Methylen METHYLENE.]
Chemistry. The radical CH₃ derived from methane, present in methanol, methanoic (formic) acid, etc. Usu. in comb.

Comb.:
methyl alcohol = METHANOL; methylbenzene = TOLUENE; methylcellulose any of a range of white, tasteless compounds produced by etherifying cellulose and used as thickening, emulsifying, and stabilizing agents, esp. in foods, laxatives, and adhesives; methyldopa Pharmacology a whitish powder, C₁₀H₁₃NO₄, used as a hypotensive agent; methyl ethyl ketone a colourless volatile liquid, CH₃COCH₂CH₃, used as a solvent for organic materials; butanone; methyl green a green dye used in microscopy to stain chromatin; methyl isobutyl ketone a liquid ketone, (CH₃)₂CHCH₂COCH₃, used as a solvent; hexone, 4-methylpentan-2-one; methyl isocyanate a toxic gas, CH₃NCO, used in making certain pesticides; methyl methacrylate a volatile colourless liquid, CH₂C(CH₃)COOCH₃, that readily polymerizes to form resinous glassy materials such as Perspex and Plexiglas; such a polymeric material; methyl orange an orange crystalline compound which is the sodium salt of a sulphur-containing azo dye, chiefly used in solution as an acid-base indicator, giving a pink colour at pH 3 and yellow at pH 4.4; methylphenidate a sympathomimetic drug used as a CNS stimulant to treat various depressive and lethargic conditions; methyl red a red crystalline acidic azo dye, (CH₃)₂NC₆H₄N:NC₆H₄COOH, used in solution as an acid-base indicator, giving a red colour at pH 4.4 and yellow at pH 6; methyl rubber an early synthetic rubber made by polymerizing dimethylbutadiene; methyl salicylate a colourless or pale yellow liquid, C₆H₄(OH)COOCH₃, the chief constituent of oil of wintergreen and sweet birch oil, which is used as a flavouring, in perfumery, and in analgesic liniments and ointments; methyltestosterone Pharmacology any of the methyl derivatives of testosterone; esp. (more fully 17-methyltestosterone) a synthetic androgen used to treat hormonal imbalances and certain cancers; methylthiouracil a drug which inhibits thyroid activity and is used to control thyrotoxicosis; 6-methyl-2-thiouracil; methyl violet gentian violet.

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