There are multiple definitions:

1. intrinsic sphincter deficiency(English)

   • AUS, BNC, BNR, CCC, CIC, SPC, SUI, DUPS, MUS, POP, PVS, TFS
   • Urology
   • https://doi.org…ucl.2017.04.013

2. in-source decay(English)

   • a rapid fragmentation occurring in the matrix-assisted laser desorption/ionization (MALDI) source before the ion extraction
   • MALDI
   • Laser technique
   • https://doi.org…sms.2010.07.009

3. infantile seborrhoeic dermatitis(English)

   • a chronic, inflammatory, scaling skin condition, which causes redness and a greasy scaling rash in infants and young children. It can last from weeks to months, but rarely years. When it occurs on the scalp, it is referred to as 'cradle cap'
   • Dermatology, Neonatal situation
   • https://doi.org…8.CD011380.pub2

4. iatrogenic septal defect(English)

   • AF, CFD, CW, DRT, IAS, ICE, LA, LAA, LAAO, non-CW, PDL, PLAATO, SEC, TEE, TTE
   • Iatrogenic, Cardiology
   • https://doi.org…1111/echo.15722

5. isosorbide dinitrate(English)

   • see angina pectoris
   • AP, LAD, NTG, RCA
   • Cardiology, Exercise & Training, Pain, Pharmacology / pharmaceutics
   • https://doi.org…01.cir.39.2.157