fusel-oil

fusel oil

[fyoo-zuhl, -suhl]
noun
a mixture consisting chiefly of amyl alcohols obtained as a by-product in the fermentation of grains.

Origin:
1855–60; < German Fusel bad liquor

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World English Dictionary
fusel oil or fusel (ˈfjuːzəl)
 
n
a mixture of amyl alcohols, propanol, and butanol: a by-product in the distillation of fermented liquors used as a source of amyl alcohols
 
[C19: from German Fusel bad spirits]
 
fusel or fusel
 
n
 
[C19: from German Fusel bad spirits]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
fusel oil   (fy'zəl)  Pronunciation Key 
An acrid, oily, poisonous liquid occurring in the distillation products of fermented alcoholic liquids. Fusel oil is a mixture of amyl alcohols, fatty acids, and esters. It is used in paints, plastics, and varnishes, and in the manufacture of explosives.
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