bite
Assertive acid in a wine can give the finish a “bite.” In rich, full-bodied wine, this can be positive, but overt acid in a lesser wine is a fault.
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.