panic disorder definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A psychological disorder characterized by recurrent panic attacks and usually resulting in the development of one or more phobias, such as agoraphobia. It may or may not be associated with a specific situational trigger.
panic disorder - Medical Definition
An anxiety disorder characterized by the occurrence of intense episodes of extreme anxiety and accompanying symptoms such as shortness of breath, chest pain, sweating, and dizziness.