SAD
Look up SAD in Wiktionary, the free dictionary.
The initialism SAD may refer to:
Medicine
- Sagittal abdominal diameter, body diameter at the waistline
- Schizoaffective disorder, a psychiatric diagnosis
- Seasonal affective disorder, typically winter depression
- Separation anxiety disorder in children
- Social anxiety disorder, in social situations
- Specific antibody deficiency, a kind of primary immunodeficiency
- Standard American diet or Western pattern diet
- Syncope, angina, and dyspnea, classic symptoms of severe aortic stenosis
Organisations
- Shiromani Akali Dal, a political party in India
- Sociedad Anónima Deportiva, a type of incorporated sports club in Spain
- Sociedade Anónima Desportiva, a type of incorporated sports club in Portugal
- Special Activities Division, of the US CIA
Science and technology
- Selected area diffraction, a crystallographic experimental technique
- Single-wavelength anomalous dispersion, in X-ray crystallography
- Source axis distance in external beam radiotherapy, the distance from the source of photons to the isocentre
- Sum of absolute deviations (or least absolute deviations), a mathematical optimization technique
- Sum of absolute differences, a simple metric for motion estimation in video compression
- Systems analysis and design, in science
Other uses
- Single Administrative Document, for customs declarations in the European Union Customs Union
- Singles Awareness Day, a humorous holiday every February 14
- Suicide Attack Database, for 1982-2013
- "S.A.D.", a song by Man Overboard on the album Heart Attack
See also
This disambiguation page lists articles associated with the title SAD.
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If an internal link led you here, you may wish to change the link to point directly to the intended article.