There are multiple definitions:

1. integrated backscatter(English)

   • IMT, TDI
   • Ultrasound

2. International Biotherapy Society(English)

   • Alternative medicine, Organizations (international)

3. irritable bowel syndrome(English)

   • defined as a functional bowel disorder in which recurrent abdominal pain is associated with defecation or a change in bowel habits. Bloating as a symptom is so widespread that it is neither sensitive nor specific for IBS alone
   • SSS, BSFS, CBC, CMP, CRP, FGID, IBS-C, IBS-D, IBS-M, IBS-U, TSH, FAP, FAPD, IBD, MIGSEV
   • Gastroenterology, Classification, Pain, Headache
   • https://doi.org…3390/jcm6110099
   • https://doi.org…55/2022/8690562

4. inbewaringstelling(Dutch)

   • Legal issues

5. identity-by-state(English)

   • may refer to pseudohaploid genotypes
   • Genetics
   • https://doi.org…science.adu1990