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seasonal affective disorder

seasonal affective disorder definition - medical

sea·son·al affective disorder (sēˈzə-nəl)

noun Abbr. SAD
A mood disorder occurring during seasons when sunlight is limited, characterized by symptoms of depression.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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