There are multiple definitions:

1. artificial insemination by donor(English)

   • AIH
   • Embryology /reproduction

2. activation-induced cytidine deaminase(English)

   • targets transcriptionally active immunoglobulin heavy chain (IgH) switch donor and acceptor DNA
   • CSR, DNA, IgH, 3'RR
   • Genetics
   • https://doi.org…cel.2018.08.042

3. Agency for International Development(English)

   • Organizations (international)

4. autoimmune disease(English)

   • ADEM, CNS, COVID-19, CVST, GBS, MG, PNS, TM
   • Autoimmunity
   • https://doi.org…55/2022/1283729

5. apparent ileal digestibility(English)

   • ATTD, FTU
   • Gastroenterology, Nutrition
   • https://doi.org…1093/jas/skz151

6. absolute iron deficiency(English)

   • means that the body’s iron stores and functional reserves are depleted. Effective aid requires identifying the root cause (like blood loss or malabsorption) while aggressively building stores back up through medicinal iron (tablets or IV) and targeted dietary changes
   • FID
   • Hematology, Clinical chemistry, Lifestyle
   • https://doi.org…319-2442.256838