Meaning of noble rot

no'ble rot'

Pronunciation: [key]
— Winemaking.
  1. the fungus Botrytis cinerea, which is cultivated in some winemaking processes, esp. in the making of French Sauternes, where the ripened grapes become shriveled as a result of its introduction, thereby concentrating the juice and increasing the sugar content. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.