noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The simplest diketone CH₃-CO-CO-CH₃, used as an aroma agent; and derivative of this compound

Synonyms

All synonyms

diacetyldiacetylpopcorn lung

Etymology

From butane + dione.

Related phrases

artificial butter flavorpopcorn lung

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.