methyl

/ˈmɛθəl/

IPA: /M EH1 TH AH0 L/

noun
  1. 1

    The univalent hydrocarbon radical, CH3-, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical.

Source: https://en.wiktionary.org/wiki/methyl