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methyl Line breaks: me¦thyl
Pronunciation: /ˈmiːθʌɪl/
/ˈmɛθʌɪl/ /ˈmiːθəl/ /ˈmɛθəl/

Definition of methyl in English:


[as modifier] Chemistry
Of or denoting the alkyl radicalCH3, derived from methane and present in many organic compounds: methyl bromide
More example sentences
  • For example, the derived alkyl group from methane is the methyl group.
  • Currently, the largest volume organic bromine product is methyl bromide, a fumigant.
  • The boat was carrying 6000 metric tons of styrene, isopropyl and methyl ethyl ketone.


Mid 19th century: from German Methyl or French méthyle, back-formations from German Methylen and French méthylène (see methylene).

Definition of methyl in:
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