Scd

Scd or SCD may refer to:

In medicine

 * Salicylate decarboxylase, an enzyme
 * Schnyder crystalline corneal dystrophy, an eye disease
 * Sequential compression device, to improve blood flow
 * Sickle-cell disease, a blood disease
 * Specific Carbohydrate Diet
 * Stearoyl-CoA desaturase-1, an enzyme
 * Sudden cardiac death
 * Superior canal dehiscence, of the inner ear

In engineering and information technology

 * System context diagram
 * /dev/scd, SCSI audio-oriented optical disk drives
 * Slowly changing dimension, a datawarehousing term for data that changes slowly
 * The Scientific Computing Division of the National Center for Atmospheric Research
 * Substation Configuration Description for electrical substations
 * Special category data, sensitive data as defined by the GDPR

Other uses

 * Satélite de Coleta de Dados, Brazilian satellites SCD-1 and SCD-2
 * Sc.D., Doctor of Science degree
 * Scottish country dance
 * Senior College Dún Laoghaire, now Blackrock Further Education Institute, Ireland
 * Service-Connected Discharge a category of discharge from the United States Army
 * Social communication disorder, a language disorder
 * Specialist Crime Directorate (Metropolitan Police), London, former branch
 * Sports Collectors Digest, a publication
 * St. Cloud station, Minnesota, U.S., Amtrak code
 * Strictly Come Dancing, a British TV show
 * Sylacauga Municipal Airport, Alabama, US, FAA identifier
 * Syrian Civil Defense or the White Helmets, a volunteer organisation