See also: méthylène

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Etymology edit

French méthylène, from Ancient Greek μέθυ (méthu, wine) + ὕλη (húlē, wood).

Noun edit

methylene (countable and uncountable, plural methylenes)

  1. (organic chemistry) The divalent group CH2< in which the free valencies are part of single bonds.
  2. (organic chemistry) The same group, present as a repeating unit, in aliphatic compounds with names such as hexamethylenediamine.
  3. (organic chemistry) The unstable carbene CH2:

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