beeswing
/ˈbizˌwɪŋ/
noun
- A thin, crumbly film that forms on the inside of a bottle of old wine, especially port.
- Collectors prize old bottles of wine that have developed a delicate beeswing.
- The sommelier carefully decanted the port to separate the beeswing from the liquid.
- When I opened the vintage port, I noticed a beautiful beeswing clinging to the glass.