methene

methene
Methylene Meth"yl*ene, n. [F. m['e]thyl[`e]ne, 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}. [1913 Webster]

{Methylene blue} (Chem.), an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; -- called also {pure blue}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Methene — Meth ene, n. [Methyl + ethylene.] (Chem.) See {Methylene}. [1913 Webster] …   The Collaborative International Dictionary of English

  • methene — ˈmeˌthēn noun ( s) Etymology: International Scientific Vocabulary meth + ene 1. : methylene 2. : a complex unsaturated derivative of methane of the general formula R−CH . R′ di pyrryl methene HNC4H3−CH . C4H …   Useful english dictionary

  • methene — The moiety =CH . * * * meth·ene me .thēn n 1) METHYLENE 2) a complex unsaturated derivative of methane of the general formula R CH=R * * * meth·ene (methґēn) methylene …   Medical dictionary

  • methene — meth·ene …   English syllables

  • Geschichte der U-Boot-Klasse T (Royal Navy) — Die T Klasse war eine U Boot Klasse der britischen Marine im Zweiten Weltkrieg. Das letzte Boot der Klasse wurde 1975 in Israel außer Dienst gestellt. Inhaltsverzeichnis 1 1936–1938 2 1939 3 1940 …   Deutsch Wikipedia

  • Geschichte der britischen U-Boot-Klasse T — Die T Klasse war eine U Boot Klasse der britischen Marine im Zweiten Weltkrieg. Das letzte Boot der Klasse wurde 1975 in Israel außer Dienst gestellt. Inhaltsverzeichnis 1 1936–1938 2 1939 3 1940 4 …   Deutsch Wikipedia

  • HMS Torbay (N79) — Allgemeine Daten Schiffstyp: U Boot …   Deutsch Wikipedia

  • CH — Methenyl Meth e*nyl, n. [Methene + yl.] (Chem.) The hypothetical hydrocarbon radical {CH}, regarded as an essential residue of certain organic compounds. [1913 Webster] …   The Collaborative International Dictionary of English

  • -CH2- — Methylene Meth yl*ene, n. [F. m[ e]thyl[ e]ne, 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… …   The Collaborative International Dictionary of English

  • CH2Br2 — Methylene Meth yl*ene, n. [F. m[ e]thyl[ e]ne, 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… …   The Collaborative International Dictionary of English

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