Bible Dictionaries
Fusel Oil

Webster's Dictionary

A hot, acrid, oily liquid, accompanying many alcoholic liquors (as potato whisky, corn whisky, etc.), as an undesirable ingredient, and consisting of several of the higher alcohols and compound ethers, but particularly of amyl alcohol; hence, specifically applied to amyl alcohol.

Bibliography Information
Webster, Noah. Entry for 'Fusel Oil'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​f/fusel-oil.html. 1828.