Definition of methylene in English:

methylene

noun ˈmɛθɪliːnˈmɛθəˌlin

Chemistry

as modifier Of or denoting the divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms.
〔化〕亚甲基，甲烯基
methylene chloride
二氯甲烷。
Example sentencesExamples
- These techniques include dry abrasive blasting and on-site use of methylene chloride or propane torches.
- Your body changes some inhaled methylene chloride to carbon monoxide.
- There are roughly two categories of products available; those containing methylene chloride, and those that don't.
- Paint and other materials that are not soluble in degreasing solvents may require the use of methylene chloride, alkaline cleaners, or special proprietary compounds.
- The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.

Origin

Mid 19th century: from French méthylène (formed irregularly from Greek methu 'wine' + hulē 'wood') + -ene.

Definition of methylene in US English:

methylene

nounˈmeTHəˌlēnˈmɛθəˌlin

Chemistry

as modifier The divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms.
〔化〕亚甲基，甲烯基
methylene chloride
二氯甲烷。
Example sentencesExamples
- There are roughly two categories of products available; those containing methylene chloride, and those that don't.
- These techniques include dry abrasive blasting and on-site use of methylene chloride or propane torches.
- The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
- Paint and other materials that are not soluble in degreasing solvents may require the use of methylene chloride, alkaline cleaners, or special proprietary compounds.
- Your body changes some inhaled methylene chloride to carbon monoxide.

Origin

Mid 19th century: from French méthylène (formed irregularly from Greek methu ‘wine’ + hulē ‘wood’) + -ene.

单词	methylene
释义	Definition of methylene in English: methylene noun ˈmɛθɪliːnˈmɛθəˌlin Chemistry as modifier Of or denoting the divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms. 〔化〕亚甲基，甲烯基 methylene chloride 二氯甲烷。 Example sentencesExamples These techniques include dry abrasive blasting and on-site use of methylene chloride or propane torches. Your body changes some inhaled methylene chloride to carbon monoxide. There are roughly two categories of products available; those containing methylene chloride, and those that don't. Paint and other materials that are not soluble in degreasing solvents may require the use of methylene chloride, alkaline cleaners, or special proprietary compounds. The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds. Origin Mid 19th century: from French méthylène (formed irregularly from Greek methu 'wine' + hulē 'wood') + -ene. Definition of methylene in US English: methylene nounˈmeTHəˌlēnˈmɛθəˌlin Chemistry as modifier The divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms. 〔化〕亚甲基，甲烯基 methylene chloride 二氯甲烷。 Example sentencesExamples There are roughly two categories of products available; those containing methylene chloride, and those that don't. These techniques include dry abrasive blasting and on-site use of methylene chloride or propane torches. The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds. Paint and other materials that are not soluble in degreasing solvents may require the use of methylene chloride, alkaline cleaners, or special proprietary compounds. Your body changes some inhaled methylene chloride to carbon monoxide. Origin Mid 19th century: from French méthylène (formed irregularly from Greek methu ‘wine’ + hulē ‘wood’) + -ene.
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