blood alcohol concentration (or blood alcohol content) - Legal Definition
Webster's New World Law Dictionary Copyright © 2010 by Wiley Publishing, Inc., Hoboken, New Jersey.
The amount of alcohol in an individual’s bloodstream expressed as a percentage of the total composition of one’s blood. The percentage is used to determine whether the person is legally drunk, especially in regard to laws prohibiting the driving of vehicles while under the influence of alcohol.
Used by arrangement with John Wiley & Sons, Inc.