SAD

Look up SAD or sad in Wiktionary, the free dictionary.

The word sad refers to an emotional condition; see sadness or the Wiktionary entry for more.

The acronym SAD may refer to:

• Sagittal Abdominal Diameter, the diameter around one's waistline
• Schizoaffective disorder, a psychiatric diagnosis with symptoms of a mood disorder and schizophrenia
• Seasonal affective disorder, a mood disorder with depressive symptoms in the winter
• Separation anxiety disorder, a psychological condition related to anxiety of separation from home or from people
• Sexual arousal disorder, the inability to attain or maintain typical responses to sexual arousal
• Selected area diffraction, a crystallographic experimental technique that can be performed inside a transmission electron microscope
• Shiromani Akali Dal, an Indian political party
• Silicon Avalanche Diode, an electronic component
• Singles Awareness Day, a humorous holiday celebrated on February 14
• Social anxiety disorder, a diagnosis referring to excessive anxiety in social situations
• Special Activities Division, the Central Intelligence Agency's special operations force in the United States
• Standard American Diet, a phrase associated with diet-related obesity in the United States
• Sum of absolute differences, a simple metric for motion estimation in video compression
• Syncope, Angina, and Dyspnea, classic symptoms of severe aortic stenosis
• Systems Analysis and Design, an interdisciplinary part of science
• SAD (public transport), an Italian transportation company (Italian: SAD (Bolzano))

Sad can also mean:

• Ṣād, a letter of the Arabic alphabet (ﺹ).
• Sad (sura), the 38th sura of the Qur'an (named after the letter)
• Sad, Podlaskie Voivodeship (north-east Poland)
• Sandawe language (ISO 639 language code), a tonal language spoken in Tanzania

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.