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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). fusel oil. Retrieved September 26, 2026, from http://smartdefine.org/fusel_oil/definitions/2010846 |
| Chicago | Webster's. 2011. "fusel oil" http://smartdefine.org/fusel_oil/definitions/2010846 (accessed September 26, 2026). |
| Harvard | Webster's 2011, fusel oil, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/fusel_oil/definitions/2010846>. |
| MLA | Webster's. "fusel oil" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/fusel_oil/definitions/2010846> |