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See also: ásd



ASD (countable and uncountable, plural ASDs)

  1. Initialism of average standard deviation.
  2. Initialism of actual ship date.
  3. Initialism of after-school detention.
  4. Initialism of atrial septal defect.
  5. Initialism of autistic spectrum disorder.
    • 2008, "Scientists Pinpoint Pathway That Impacts Features of Autism", 8 October 2018, R&D Magazine.
      Currently, there are no FDA-approved medications that improve the core symptoms of ASD.
    • 2008, Ana Maria Rodriguez, Autism and Asperger Syndrome, Twenty-First Century Books, →ISBN, page 38:
      In the non-ASD population, the incidence of savants is about 1 percent. Why people in the spectrum are more likely to be savants is still a mystery.
  6. Initialism of activity support date.
  7. Initialism of aircraft statistical data.
  8. Initialism of Assistant Secretary of Defense.
  9. (seduction community) Initialism of anti-slut defense: avoidance of taking responsibility for initiating or agreeing to sex so as not to appear slutty

Proper noun[edit]


  1. Aeronautical Systems Division