rotundone

Noun

rotundone (uncountable)

1. A sesquiterpene responsible for a peppery taste in wine.
   • The Australian scientists may also have discovered how these highly spiced potatoes were allowed to leave the kitchen: they tested 49 people and found that about 20 percent of them could not detect rotundone at all, even at concentrations far above what’s found in white pepper.2008 June 4, Harold Mcgee, “What’s the Peppery Note in Those Shirazes?”, in New York Times