fusel oil noun phr. ['fju:z(ǝ)l ɔɪl] M19.
[German Fusel bad brandy etc.; cf. fuseln FOOZLE verb.]
A mixture of several alcohols, esp. amyl alcohol, which is a by-product of alcoholic fermentation and can sometimes make alcoholic liquors harmful or poisonous.

[TahlilGaran] English Dictionary ▲