Look up SSD in Wiktionary, the free dictionary.

A solid-state drive is a type of data storage device which uses semiconductor memory rather than magnetic media.

SSD may also refer to:

Science and technology

• Saturated-surface-dry, aggregate or porous solid condition
• Singular spectrum decomposition, a method of decomposing nonlinear and non-stationary time series as a form of singular spectrum analysis

Biology and medicine

• Schizophrenia spectrum disorders
• Signal-sensing domain, in molecular biology
• Sterol-sensing domain, a protein domain
• Speech sound disorder
• Sexual size dimorphism
• Single-sided deafness
• Somatic symptom disorder
• A brand name for Silver sulfadiazine antibacterial

Computing

• Server-side decoration of windows, an alternative to client-side decoration
• Single-shot multibox detection, computer vision object detection
• System sequence diagram in software engineering

Mathematics

• Schwartz sequential dropping, an electoral system

Other uses

• Sardar Sarovar Dam, Gujarat, India
• Scalextric Sport Digital, toy cars
• Singapore School for the Deaf
• South Sudan (ISO 3166-1 alpha-3 code: SSD)
• SSD (band), Boston, US, 1981–1985
• Siroi language (ISO code: ssd), of Papua New Guinea
• Special School District of St. Louis County
• Stansted Airport railway station (National Rail code: SSD)
• Social Security Disability Insurance (SSD or SSDI), US
• State Security Department, North Korean secret police
• United States–Russia Strategic Stability Dialogue, meetings to reduce the risk of US–Russia nuclear war

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