Definition of butyl
: any of four isomeric alkyl radicals C4H9− derived from butane
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Recent Examples of butyl from the Web
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Alpha-tocopherol, pyridoxal phosphate, pantothenic acid, tyrosine tryptophan, butyl butanoate, phloretin xyloglucoside, ethyl hexanoate.
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Butyl urea slows the formation of those H-bonds, preventing curl.
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Origin and Etymology of butyl
International Scientific Vocabulary butyric + -yl
Medical Dictionary
medical Definition of butyl
: any of four isomeric monovalent radicals C4H9 derived from butanes
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