There are multiple definitions:

1. anti-doping aanpak(Dutch)

   • commissie met richtlijnen en gedragscode voor ploegartsen
   • Sports medicine, Guidelines
   • https://www.dop…-of-stoppen.pdf

2. adenosine deaminase(English)

   • eADA, DAF, GST, PEG, SCID, HSC, CID, DBS, GA, HSCT, IgG, KREC, MHC, NBS, PID, TREC
   • Stem cell
   • https://doi.org…science.1070104
   • https://doi.org…/smw.2020.20254

3. American Dental Association(English)

   • Dentistry, Organizations (clinical)
   • https://www.ada.org/en

4. American Diabetes Association(English)

   • EASD
   • Diabetes, Insulin, Organizations (documentation)
   • https://www.diabetes.org/

5. Americans with Disabilities Act(English)

   • enacted in 1990
   • Disability, Legal issues
   • https://adata.o…learn-about-ada

6. American Dietetic Association(English)

   • ACEND, RDN
   • Diabetes, Nutrition, Organizations (documentation), Diet
   • https://www.eatright.org/
   • https://www.jan…rg/content/aims
   • https://www.nut…reesonline.org/
   • https://www.chea.org/
   • https://www.nutritioned.org/
   • https://www.eatrightpro.org/

7. antidrug antibody(English)

   • as intended for human use are designed to bind specifically to their target in human patients, without regard to the ability to bind to the corresponding target in animals. Formation is commonly observed with biologics (e.g. monoclonal antibodies)
   • PwHA, NOAEL
   • Immunology, Pharmacology / pharmaceutics
   • https://doi.org…14647-7.00006-3
   • https://doi.org…immu.2019.02921