extra dry
The term “extra dry” (or extra sec) appears on sparkling wine labels to indicate that a wine is fairly dry, but with some residual sugar. extra dry sparkling wines usually contain 1.2 to 2 percent sugar, making them sweeter than brut but drier than sec, demi sec, or doux.
The New Wine Lovers Companion, 2nd Edition, by Ron Herbst and Sharon Tyler Herbst. Copyright © (1) 2003, 1995 by Ron Herbst and Sharon Tyler Herbst. Reprinted by arrangement with Barron's Educational Series, Inc.