Definition of "antianxiety drug" [antianxiety drug]
Any of a group of drugs, such as the benzodiazepines, that are used to treat anxiety without causing excessive sedation. Also called anxiolytic drug, minor tranquilizer. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.