1. Plural of biacetyl; a chemical compound (2,3-butanedione) used as a flavoring agent, particularly in butter and cream products.
Usage: chemistry; food industry; also called diacetyl

Examples

• Biacetyls are commonly found in artificial butter flavoring.
• The food manufacturer reduced biacetyls in their popcorn seasoning.
• Biacetyls contribute to the characteristic buttery aroma in some dairy products.
• Workers exposed to biacetyls in factories have reported respiratory issues.
• The chemical composition of biacetyls makes them useful in flavoring applications.