Definition of polymethylene in English:

polymethylene

noun ˌpɒlɪˈmɛθɪliːn

Chemistry

Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)ₙ; = "naphthene". Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)ₙ—.

Late 19th century; earliest use found in Journal of the Chemical Society. From poly- + methylene.

nounˌpɒlɪˈmɛθɪliːn

Chemistry

Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)ₙ; = "naphthene". Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)ₙ—.

Late 19th century; earliest use found in Journal of the Chemical Society. From poly- + methylene.

词汇	polymethylene
释义	Definition of polymethylene in English: polymethylene noun ˌpɒlɪˈmɛθɪliːn Chemistry Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)ₙ; = "naphthene". Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)ₙ—. Origin Late 19th century; earliest use found in Journal of the Chemical Society. From poly- + methylene. Definition of polymethylene in US English: polymethylene nounˌpɒlɪˈmɛθɪliːn Chemistry Originally: any of the series of saturated cyclic hydrocarbons with the formula (CH₂)ₙ; = "naphthene". Later: a compound, group, or polymeric structure which consists of or contains a chain of methylene groups, —(CH₂)ₙ—. Origin Late 19th century; earliest use found in Journal of the Chemical Society. From poly- + methylene.
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