One of the mysteries of the English language finally explained.
1as modifier An alkyl radical —C₄H₉, derived from butane.‘butyl acetate’
- ‘These may contain solvents such as toluene, isopropryl alcohol, ethyl and butyl acetates, acetone and other ketones.’
- ‘These reformulated gasolines contain either corn-derived ethanol or natural-gas derivatives such as MTBE (methyl tertiary butyl ether).’
- ‘The subcommittee is currently reviewing two bills concerning methyl tertiary butyl ether.’
- ‘The most durable exterior house paints are based on acrylic co-polymers of materials like methyl methacrylate and butyl acrylate.’
- ‘However, in Philadelphia, refineries had reformulated gasoline to include increased concentrations of methyl tertiary butyl ether.’
- 1.1short for butyl rubber
- ‘Because no appropriate regulations existed in 1969, there was no legal requirement to line the landfill site in order to prevent leakage, thus no butyl membrane was ever applied to the base of the site, as would be the requirement nowadays.’
- ‘I made this last year and the inside of it is a children's plastic sand pit with a butyl liner over it inside a timber frame.’
- ‘Several types of synthetic materials also may be referred to as latex (eg, butyl, petroleum-based materials) but these do not contain the proteins that cause allergic reactions.’
- ‘Seam problems were resolved by the introduction of butyl seam tapes as a replacement for earlier liquid-applied neoprene adhesive.’
- ‘Good ventilation, goggles, and butyl or nitrile rubber gloves are essential; work in a hood is recommended.’
Mid 19th century: from butyric acid + -yl.
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