Definition of propyl in English:



as modifier
  • Of or denoting the alkyl radical —C₃H₇, derived notionally from propane.

    Compare with isopropyl

    ‘The propyl group is a functional group derived from propane by the removal of a hydrogen atom.’
    • ‘The family's common names follow the standard alkane hydrocarbon sequence: methyl paraben, ethyl paraben, propyl paraben, butyl paraben, etc.’
    • ‘Peak concentrations of propyl nitrate and butyl nitrate in south-central Kansas were 51 and 68 parts per trillion, respectively.’
    • ‘The first four alkyl groups are methyl, ethyl, propyl, and butyl, with the number of carbon atoms being one, two, three, and four respectively.’
    • ‘There are clear hints that it may be useful to combine the phenidone with methyl, ethyl, propyl, or isopropyl alcohol.’



/ˈprōp(ə)l/ /ˈproʊp(ə)l/