methylene

meth·yl·ene  (mth-ln)

n.

A bivalent hydrocarbon radical, CH₂-, a component of unsaturated hydrocarbons.

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[French méthylène : Greek methu, wine; see medhu- in Indo-European roots + Greek hl, wood, substance.]

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methylene

Adjective

of, consisting of, or containing the divalent group of atoms –CH₂–: a methylene group or radical [Greek methu wine + hulē wood + -ene, indicating a double bond]

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methylene  (mth-ln)

A bivalent hydrocarbon radical, CH₂. Because it has two unshared electrons, it is extremely reactive and occurs only as an intermediate byproduct in chemical reactions. Methylene is a component of unsaturated hydrocarbons.

Thesaurus

Noun

1.

methylene - the bivalent radical CH2 derived from methane methylene group, methylene radical chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule