Word Study
[2x]
: MÜ Mä Mæ Mé Mê Mö Mœ M- M. M1 M2 M3 M< Ma Mb Mc Md Me Mf Mg Mh Mi Mk Ml Mm Mn Mo Mp Mr Ms Mt Mu Mv Mw Mx My
methylene
CIDE DICTIONARY
methylene, n. [F. méthylène, from Gr. wine + wood; -- a word coined to correspond to the name wood spirit.].
A divalent hydrocarbon radical, -CH2- , not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2 ; -- formerly called also methene . [1913 Webster]
OXFORD DICTIONARY
methylene, n. Chem. the highly reactive divalent group of atoms CH2.
Etymology
F m{eacute}thyl{egrave}ne f. Gk methu wine + hule wood + -ENE
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