butyl.
Any of four isomeric univalent hydrocarbon radicals, C₄H₉, formally derived from butane by the loss of a hydrogen atom.
Meaning & usage
Any of four isomeric univalent hydrocarbon radicals, C₄H₉, formally derived from butane by the loss of a hydrogen atom.
A synthetic rubber made by the polymerization of isobutylene.
Where this word comes from
PIE word *gʷṓws Etymology tree Proto-Indo-European *gʷṓws Proto-Hellenic *gʷous Ancient Greek βοῦς (boûs) Proto-Indo-European *tewh₂- Proto-Indo-European *-rós Proto-Indo-European *tuh₂rós Proto-Hellenic *tūrós Ancient Greek τῡρός (tūrós) Ancient Greek βούτῡρος (boútūros)der. English but- Proto-Indo-European *swel-der.? Ancient Greek ῡ̔́λη (hū́lē)der. Frenchder. English -yl English butyl From but- + -yl.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.