methylene

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noun meth·y·lene \ˈme-thə-ˌlēn, -lən\

Definition of methylene

  1. :  a divalent hydrocarbon group CH2 derived from methane

Origin and Etymology of methylene

French méthylène, from Greek methy wine + hylē wood — more at mead


First Known Use: 1835


Medical Dictionary

methylene

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noun meth·y·lene \ˈmeth-ə-ˌlēn, -lən\

Medical Definition of methylene

  1. :  a bivalent hydrocarbon radical CH2 derived from methane by removal of two hydrogen atoms


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