seasonal affective disorder

seasonal affective disorder

noun
recurrent winter depression characterized by oversleeping, overeating, and irritability, and relieved by the arrival of spring or by light therapy. Abbreviation: SAD

Origin:
1980–85

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Collins
World English Dictionary
seasonal affective disorder
 
n
SAD a state of depression sometimes experienced by people in winter, thought to be related to lack of sunlight

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Dictionary.com's 21st Century Lexicon
Main Entry:  seasonal affective disorder
Part of Speech:  n
Definition:  depression associated with the reduction of daylight during the shorter days of late autumn and winter; abbr. SAD
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American Heritage
Medical Dictionary

seasonal affective disorder sea·son·al affective disorder (sē'zə-nəl)
n.
Abbr. SAD
A mild form of depression occurring at certain seasons of the year, especially depression that recurs in winter and that is characterized by loss of energy and sexual drive, restlessness, and often by a craving for carbohydrates.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
seasonal affective disorder   (sē'zə-nəl)  Pronunciation Key 
A mood disorder that occurs during seasons when exposure to sunlight is limited, characterized by symptoms of depression.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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