释义 |
Definition of methylene in English: methylenenoun ˈmɛθɪliːnˈmɛθəˌlin Chemistry as modifier Of or denoting the divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms. 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: methylenenounˈmeTHəˌlēnˈmɛθəˌlin Chemistry as modifier The divalent radical or group —CH₂—, derived from methane by loss of two hydrogen atoms. 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. |