biacetyl
[bahy-
uh
-
seet
-l, -
set
-l, bahy-
as
-i-tl]
/ˌbaɪ əˈsit l, -ˈsɛt l, baɪˈæs ɪ tl/
noun
,
Chemistry
1.
a yellow, water-soluble liquid, C
4
H
6
O
2
, occurring in butter and in certain essential oils, as bay, and also synthesized: used chiefly to augment the flavor and odor of vinegar, coffee, and other foods.
Also,
diacetyl
.
Origin
bi-
1
+
acetyl