Found 2 items, similar to BUTYL.
English → English (WordNet) Definition: butyl butyl n : a hydrocarbon radical (C4H9)
English → English (gcide) Definition: Butyl Butyl \Bu"tyl\, n. [L. butyrum butter + -yl. See Butter.] (Chem.) A compound radical, regarded as butane, less one atom of hydrogen. [1913 Webster]