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De - Pt| English Dictionary: CH2 | by the DICT Development Group |
| 1 result for CH2 | |
| From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
|
Methylene \Meth"yl*ene\, n. [F. m[82]thyl[8a]ne, from Gr. [?] wine + [?] wood; -- a word coined to correspond to the name wood spirit.] (Chem.) 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}. | |
