Denatured alcohol and Fermentation alcohol

Denatured alcohol noun - Ethyl alcohol that is unfit for drinking but is still useful for other purposes.

Fermentation alcohol and denatured alcohol are semantically related. In some cases you can use "Fermentation alcohol" instead a noun phrase "Denatured alcohol".

Fermentation alcohol noun - The intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline.

Denatured alcohol and fermentation alcohol are semantically related. Sometimes you can replace phrase "Denatured alcohol" with "Fermentation alcohol", this phrases are similar.