There are multiple definitions:

1. inflammatory bowel disease(English)

   • classically seen this includes two entities: Crohn's disease (CD) and ulcerative colitis (UC). The correct differentiation between these two diseases has important implications. See also the term inflammatory bowel disease unclassified (IBDu)
   • CARD, AIP, UC, IBS, VDR, IBDu, PC
   • Gastroenterology, Inflammasome
   • https://doi.org…7219/acem/97376
   • https://doi.org…edi.2011.03.011

2. identical by-descent(English)

   • Genetics

3. International Birth Date(English)

   • the date of the first marketing authorization
   • EBD, CVMP, PSUR
   • Pharmacology / pharmaceutics, Health care industry
   • http://www.sukl…psur-submission

4. inherited bleeding disorder(English)

   • caused by quantitative and qualitative alterations of either platelets or plasma proteins involved in coagulation and fibrinolysis. Hemophilias are the most frequent types
   • VWF
   • Hematology, Congenital disorders
   • https://doi.org…b013e32830f1b99

5. infectious bursal disease(English)

   • DPV, HVT, IBDV, IML, MDA, CEE, rHVT, SPF
   • Veterinary medicine
   • https://doi.org…44-120815-Reg.1
   • https://doi.org…55/2017/8359047

6. isolation by distance(English)

   • COI
   • Malaria, Mitochondrion
   • https://doi.org…093/jme/tjaa211

7. iliac branch device(English)

   • AIE, AMI, AMS, CTA, EL, EVAR, RR
   • Vascular disease, Anatomy, Surgery
   • https://doi.org…vsg.2024.05.022