Thesaurus: methylene

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1. n. A 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.
2. n. the bivalent radical CH2 derived from methane
3. A 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. Methylene blue (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also pure blue.
4. A hydrocarbon radical, CH2, not known in the free state, butregarded as an essential residue and component of certain derivativesof methane; as, methylene bromide, CH2Br2; -- formerly called alsomethene. Methylene blue (Chem.), an artificial dyestuff consisting ofa complex sulphur derivative of diphenyl amine; -- called also pureblue.
5. n:100 n the bivalent radical CH2 derived from methane