Methylene

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The American Heritage® Dictionary of the English Language, 4th Edition
  • n. A bivalent hydrocarbon radical, CH2-, a component of unsaturated hydrocarbons.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. The divalent radical CH2< in which the free valencies are part of single bonds.
  • n. The same group, present as a repeating unit, in aliphatic compounds with names such as hexamethylenediamine.
  • n. The unstable carbene CH2:
    • the GNU version of the Collaborative International Dictionary of English
  • n. A divalent hydrocarbon radical, -CH2-, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; ; -- formerly called also methene.
    • The Century Dictionary and Cyclopedia
  • n. A bivalent hydrocarbon radical (CH2) which does not exist free, but occurs in many compounds, as methylene iodide, CH2I2. Also called methene.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. the bivalent radical CH2 derived from methane
    • Hypernym
    Words that are more generic or abstract
    chemical group    group    radical   
    Variant
    methene   
    Same Context
    Words that are found in similar contexts
    eosin    allylic    methylphosphonic    picryl    acyl   
     
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