mood disorder(redirected from bipolar I mood disorder)
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Any of a group of psychiatric disorders, including depression and bipolar disorder, characterized by a pervasive disturbance of mood. Also called affective disorder.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.