butyl(redirected from Isobutyl)
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Relating to or being a hydrocarbon unit, C4H9, that can occur as a substituent in an organic compound or as an ion or radical.
(Elements & Compounds) (modifier) of, consisting of, or containing any of four isomeric forms of the group C4H9–: butyl rubber.
[C19: from but(yric acid) + -yl]
bu•tyl(ˈbyu tɪl, ˈbyut l)
any of four univalent isomeric groups with the formula C4H9.