IPA: //baɪˈæsɪtɪl//
KK: /baɪˈæsɪtɪl/
A yellow liquid that dissolves in water, made of carbon, hydrogen, and oxygen. It is found in butter and some essential oils, and is often used to enhance the taste and smell of foods like vinegar and coffee.
The chef added biacetyl to the sauce to give it a richer flavor.
Biacetyl is formed from "bi-" (meaning two) and "acetyl" (from the Latin "acetum", meaning vinegar, and the suffix "-yl" indicating a radical or group). The word refers to a compound that contains two acetyl groups.
Think of 'bi-' meaning two, and 'acetyl' relating to vinegar — biacetyl is a compound with two vinegar-like groups.