Meth"yl*ene(?), n. [F. mthylne, from Gr. wine + wood; -- a word coined to correspond to the name wood spirit.] (Chem.) 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.
(Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also
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Thu 20th February 2020