Definition of methylene in English:

methylene

Syllabification: meth·yl·ene
Pronunciation: /ˈmeTHəˌlēn
 
/

noun

[as modifier] Chemistry
The divalent radical or groupCH2—, derived from methane by loss of two hydrogen atoms: methylene chloride
More example sentences
  • Your body changes some inhaled methylene chloride to carbon monoxide.
  • The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
  • Paint and other materials that are not soluble in degreasing solvents may require the use of methylene chloride, alkaline cleaners, or special proprietary compounds.

Origin

mid 19th century: from French méthylène (formed irregularly from Greek methu 'wine' + hulē 'wood') + -ene.

Definition of methylene in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day flagitious
Pronunciation: fləˈjiSHəs
adjective
(of a person or their actions) criminal; villainous